| 1 |
<?php |
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/* |
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Plugin Name: Plugin Memory Usage |
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Plugin URI: https://nett.pro/en/plugins/ |
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Description: Display different plugins memory usage and impact on Wordpress. |
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Version: 1.2.4 |
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Author: NETT.PRO |
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Author URI: https://nett.pro/en/ |
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License: GPLv3 |
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*/ |
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|
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// Prevent direct access to this file |
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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define('PLUGINMEMORYUSAGE_VERSION', '1.2.4'); |
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|
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|
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function wpmem_memory_usage_admin_menu() { |
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add_menu_page( |
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'Plugin Memory Usage', |
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'Memory Usage', |
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'manage_options', |
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'wp_plugin_memory_usage', |
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'wpmem_memory_usage_admin_page', |
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'dashicons-performance', |
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100 |
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); |
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} |
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add_action('admin_menu', 'wpmem_memory_usage_admin_menu'); |
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|
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|
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|
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|
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// Function to register the dashboard widget |
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function pluginmemoryusage_memory_usage_widget() { |
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|
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wp_add_dashboard_widget( |
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'wp_memory_usage', |
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'Plugin Memory Usage <span class="wpmem-version">'.PLUGINMEMORYUSAGE_VERSION.'</span>', |
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'pluginmemoryusage_display_memory_usage_dashboard' |
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); |
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} |
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|
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// Hook to add the widget to the dashboard |
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add_action('wp_dashboard_setup', 'pluginmemoryusage_memory_usage_widget', 1); |
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|
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|
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|
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|
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|
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|
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|
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// Get supported PHP versions with caching |
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function wpmem_get_supported_php_versions() { |
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$supported_versions = get_transient('wpmem_supported_php_versions'); |
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|
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if (false === $supported_versions) { |
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$response = wp_remote_get('https://www.php.net/supported-versions.php', array( |
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'sslverify' => false, |
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'timeout' => 5 |
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)); |
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|
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if (!is_wp_error($response) && 200 === wp_remote_retrieve_response_code($response)) { |
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$html = wp_remote_retrieve_body($response); |
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$supported_versions = wpmem_parse_supported_versions($html); |
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set_transient('wpmem_supported_php_versions', $supported_versions, WEEK_IN_SECONDS); |
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} |
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} |
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|
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return is_array($supported_versions) ? $supported_versions : []; |
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} |
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|
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// Parse HTML response from PHP.net |
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function wpmem_parse_supported_versions($html) { |
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$versions = []; |
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$dom = new DOMDocument(); |
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@$dom->loadHTML($html); |
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$tables = $dom->getElementsByTagName('table'); |
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|
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foreach ($tables as $table) { |
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$rows = $table->getElementsByTagName('tr'); |
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foreach ($rows as $row) { |
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$cells = $row->getElementsByTagName('td'); |
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if ($cells->length >= 5) { |
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$version = trim($cells->item(0)->textContent); |
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$eol_date = DateTime::createFromFormat('d M Y', trim($cells->item(3)->textContent)); |
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|
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if ($eol_date) { |
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$versions[$version] = [ |
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'eol' => $eol_date->format('Y-m-d'), |
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'status' => (new DateTime() < $eol_date) ? 'supported' : 'eol' |
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]; |
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} |
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} |
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} |
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} |
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|
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return $versions; |
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} |
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|
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|
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|
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|
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|
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|
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function wpmem_get_php_status($current_version) { |
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$supported_versions = wpmem_get_supported_php_versions(); |
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$current_branch = preg_replace('/^(\d+\.\d+).*$/', '$1', $current_version); |
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|
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// Check if current branch is supported |
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foreach ($supported_versions as $version => $data) { |
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if (version_compare($current_branch, $version, '>=') && $data['status'] === 'supported') { |
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return 'supported'; |
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} |
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} |
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|
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return 'eol'; |
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} |
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|
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|
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|
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|
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|
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|
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// to be shown in several places |
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function pluginmemoryusage_render_system_info() { |
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global $wpdb; |
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|
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// Get PHP version and status |
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$php_version = phpversion(); |
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$php_status = wpmem_get_php_status($php_version); |
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|
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// Dashicons for PHP version status |
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$icons = [ |
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'supported' => '<span class="dashicons dashicons-yes-alt" style="color:#46b450; margin-left:5px;" title="PHP version is supported"></span>', |
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'eol' => '<span class="dashicons dashicons-warning" style="color:#dc3232; margin-left:5px;" title="PHP version is end-of-life"></span>' |
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]; |
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|
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|
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|
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// Fetch latest PHP version with error handling |
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$latest_php_version = get_transient('wpmem_latest_php_version'); |
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if (false === $latest_php_version) { |
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$response = wp_remote_get('https://www.php.net/releases/?json', array( |
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'sslverify' => false, |
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'timeout' => 5 |
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)); |
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|
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if (!is_wp_error($response) && 200 === wp_remote_retrieve_response_code($response)) { |
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$data = json_decode(wp_remote_retrieve_body($response), true); |
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if (is_array($data) && !empty($data)) { |
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// Extract versions |
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$versions = array(); |
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foreach ($data as $major_version => $release_info) { |
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if (isset($release_info['version'])) { |
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$versions[] = $release_info['version']; |
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} |
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} |
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|
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usort($versions, 'version_compare'); |
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$latest_php_version = end($versions); |
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set_transient('wpmem_latest_php_version', $latest_php_version, 12 * HOUR_IN_SECONDS); |
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} |
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} |
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} |
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|
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// Validation |
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if (empty($latest_php_version) || !preg_match('/^\d+\.\d+(\.\d+)?$/', $latest_php_version)) { |
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$latest_php_version = 'Unknown'; |
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} |
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|
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|
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$is_latest = ($latest_php_version !== 'Unknown') ? version_compare($php_version, $latest_php_version, '>=') : false; |
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|
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// Get MySQL version (with caching) |
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$mysql_version = wp_cache_get('wpmem_mysql_version'); |
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if (false === $mysql_version) { |
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// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery -- No WP API for MySQL version; safe, read-only query and result is cached. |
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$mysql_version = $wpdb->get_var("SELECT VERSION()"); |
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wp_cache_set('wpmem_mysql_version', $mysql_version, '', 12 * HOUR_IN_SECONDS); |
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} |
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|
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// Get max upload size |
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$max_upload = ini_get('upload_max_filesize'); |
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$max_post = ini_get('post_max_size'); |
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$memory_limit = ini_get('memory_limit'); |
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$upload_mb = min( |
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wp_convert_hr_to_bytes($max_upload), |
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wp_convert_hr_to_bytes($max_post), |
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wp_convert_hr_to_bytes($memory_limit) |
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); |
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|
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// Get WP and PHP memory limits |
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$wp_memory_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
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$php_memory_limit = ini_get('memory_limit'); |
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|
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|
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echo '<p class="pluginmemoryusage-system-info-line"><strong>WordPress Version:</strong> ' . esc_html(get_bloginfo('version')) . '</p>'; |
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echo '<p class="pluginmemoryusage-system-info-line"><strong>PHP Version:</strong> ' . esc_html($php_version); |
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echo wp_kses_post($icons[$php_status]); |
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if ('Unknown' !== $latest_php_version) { |
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$label = $is_latest ? 'Latest' : 'Latest: ' . esc_html($latest_php_version); |
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$class = $is_latest ? 'php-version-latest' : 'php-version-outdated'; |
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echo ' <span class="' . esc_attr($class) . '">' . esc_html($label) . '</span>'; |
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} else { |
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echo ' <span class="php-version-outdated">(Version check failed)</span>'; |
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} |
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echo '</p>'; |
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|
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echo '<p class="pluginmemoryusage-system-info-line"><strong>MySQL Version:</strong> ' . esc_html($mysql_version) . '</p>'; |
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echo '<p class="pluginmemoryusage-system-info-line"><strong>Max Upload Size:</strong> ' . esc_html(size_format($upload_mb)) . '</p>'; |
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echo '<p class="pluginmemoryusage-system-info-line"><strong>WordPress Memory Limit:</strong> ' . esc_html(size_format($wp_memory_limit)) . '</p>'; |
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echo '<p class="pluginmemoryusage-system-info-line"><strong>PHP Memory Limit:</strong> ' . esc_html($php_memory_limit) . '</p>'; |
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|
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} |
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|
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|
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|
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|
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|
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|
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|
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|
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|
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// Function to display content in the dashboard widget |
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function pluginmemoryusage_display_memory_usage_dashboard() { |
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global $wpdb; |
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|
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|
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// Get WordPress memory limit |
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$wp_memory_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
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|
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// Get current memory usage |
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$current_memory_usage = memory_get_usage(true); |
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|
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// Calculate percentage used |
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$percentage_used = ($current_memory_usage / $wp_memory_limit) * 100; |
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|
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|
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|
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// Display the data - In seperate function for reusability |
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pluginmemoryusage_render_system_info(); |
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|
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// Display memory usage |
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echo '<p>Current Memory Usage: '; |
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echo esc_html(size_format($current_memory_usage)) . ' of ' . esc_html(size_format($wp_memory_limit)) . '</p>'; |
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echo '<div style="width: 100%; background: #e0e0e0; height: 24px; border-radius: 10px; overflow: hidden;"> |
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<div style="width: ' . esc_html(round($percentage_used, 1)) . '%; background: #76c7c0; height: 100%; text-align: center; line-height: 24px;" class="memory-bar-fill">' . esc_html(round($percentage_used, 1)) . '%</div> |
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</div>'; |
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|
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// Message to increase memory limit if usage is high |
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if ($current_memory_usage > $wp_memory_limit * 0.8) { |
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echo 'You are using more than 80% of allocated memory. Please go to Memory Control Panel to try to increase memory limit '; |
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echo '<p id="memory-increase-result"></p>'; |
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} |
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|
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|
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// Add button to Plugin Memory Control Panel |
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echo '<p><a href="' . esc_html(admin_url('admin.php?page=wp_plugin_memory_usage')) . '" class="button">Plugin Memory Control Panel</a></p>'; |
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} |
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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function wpmem_memory_usage_admin_page() { |
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?> |
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<div class="wrap"> |
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<h1>Plugin Memory Usage - Control Panel</h1> |
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|
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<div class="card-container"> |
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<div class="card-row"> |
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<div class="card card-system-info"> |
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<h2>System Information</h2> |
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<?php pluginmemoryusage_render_system_info(); ?> |
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</div> |
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|
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<div class="card card-memory-usage"> |
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<h2>Current Memory Usage</h2> |
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<?php |
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$wp_memory_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
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$current_memory_usage = memory_get_usage(true); |
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$percentage_used = ($current_memory_usage / $wp_memory_limit) * 100; |
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?> |
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<p>Using <span id="current-memory"><?php echo esc_html(size_format($current_memory_usage)); ?></span> of <?php echo esc_html(size_format($wp_memory_limit)); ?></p> |
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<div class="memory-bar"> |
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<div id="memory-bar-fill" class="memory-bar-fill" style="width: <?php echo esc_html(round($percentage_used, 1)); ?>%;"> |
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<span id="memory-percentage"><?php echo esc_html(round($percentage_used, 1)); ?>%</span> |
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</div> |
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</div> |
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|
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<br><button id="refresh-memory" class="button">Refresh Memory Usage</button> |
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<br><br>Memory fluctuate. Please press button once after entering panel. |
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|
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<?php |
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if ($current_memory_usage > $wp_memory_limit * 0.8) { |
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echo '<p style="color:red;">You are using more than 80% of allocated memory. Please click button below to try to increase memory limit.</p> '; |
| 305 |
echo '<p><button id="increase-memory-limit" class="button">Increase Memory Limit</button></p>'; |
| 306 |
echo '<p id="memory-increase-result"></p>'; |
| 307 |
} ?> |
| 308 |
</div> |
| 309 |
|
| 310 |
<div class="card card-memory-history"> |
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<h2>Memory Usage History</h2> |
| 312 |
|
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<ul id="memory-history-list"> |
| 314 |
|
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|
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<hr> |
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<p>This plugin measures changes in WordPress memory usage as you activate and deactivate plugins. Here's how it works:</p> |
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<ol> |
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<li>It records the current memory usage of WordPress.</li> |
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<li>When you activate or deactivate a plugin, it measures the memory usage again.</li> |
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<li>The difference between these measurements gives an estimate of the plugin's memory impact.</li> |
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<li>This process is repeated each time you toggle a plugin.</li> |
| 323 |
</ol> |
| 324 |
<p>Note: These measurements are estimates and may vary. Factors like caching, other active plugins, and WordPress itself can influence memory usage. For the most accurate results, consider testing in a controlled environment.</p> |
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<p>To begin, try activating or deactivating plugins using the buttons provided. The memory usage history will appear here.</p>| |
| 326 |
|
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|
| 328 |
|
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</ul> |
| 330 |
</div> |
| 331 |
</div> |
| 332 |
|
| 333 |
<div class="card card-plugins"> |
| 334 |
<h2>Plugins</h2> |
| 335 |
<?php |
| 336 |
$all_plugins = get_plugins(); |
| 337 |
$active_plugins = get_option('active_plugins'); |
| 338 |
|
| 339 |
|
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|
| 341 |
|
| 342 |
|
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echo '<ul class="plugin-list">'; |
| 344 |
foreach ($all_plugins as $plugin_path => $plugin_data) { |
| 345 |
$is_active = in_array($plugin_path, $active_plugins); |
| 346 |
$plugin_id = sanitize_title($plugin_data['Name']); |
| 347 |
$is_memory_usage_plugin = (strpos($plugin_path, 'plugin-memory-usage') !== false); |
| 348 |
$li_class = $is_active ? 'plugin-active' : 'plugin-inactive'; |
| 349 |
if ($is_memory_usage_plugin) { |
| 350 |
$li_class .= ' memory-usage-plugin'; |
| 351 |
} |
| 352 |
$avg_memory = wpmem_get_average_memory_usage($plugin_path); |
| 353 |
|
| 354 |
echo '<li class="' . esc_attr($li_class) . '">'; |
| 355 |
echo '<div class="plugin-info">'; |
| 356 |
echo '<span class="plugin-name">' . esc_html($plugin_data['Name']) . ' <span class="avg-memory" title="The average memory usage represents the typical amount of memory consumed by this plugin over time.">(' . esc_html($avg_memory) . ' MB)</span></span>'; |
| 357 |
echo '<div class="plugin-memory-bar" title="Absolute value of last memory change"><div class="plugin-memory-fill"><span class="plugin-memory-text"></span></div></div>'; |
| 358 |
echo '</div>'; |
| 359 |
echo '<div class="plugin-actions">'; |
| 360 |
if ($is_memory_usage_plugin) { |
| 361 |
echo '<button class="button" disabled>Active</button>'; |
| 362 |
} else { |
| 363 |
echo '<button class="button toggle-plugin" data-plugin="' . esc_attr($plugin_path) . '" data-action="' . ($is_active ? 'deactivate' : 'activate') . '">'; |
| 364 |
echo $is_active ? 'Deactivate' : 'Activate'; |
| 365 |
echo '</button>'; |
| 366 |
} |
| 367 |
echo '</div>'; |
| 368 |
echo '</li>'; |
| 369 |
} |
| 370 |
|
| 371 |
echo '</ul>'; |
| 372 |
|
| 373 |
|
| 374 |
|
| 375 |
|
| 376 |
|
| 377 |
?> |
| 378 |
</div> |
| 379 |
</div> |
| 380 |
</div> |
| 381 |
|
| 382 |
|
| 383 |
<?php |
| 384 |
} |
| 385 |
|
| 386 |
|
| 387 |
|
| 388 |
|
| 389 |
|
| 390 |
function wpmem_toggle_plugin() { |
| 391 |
check_ajax_referer('wp_memory_usage_nonce', 'nonce'); |
| 392 |
if (!current_user_can('activate_plugins')) { |
| 393 |
wp_send_json_error('Insufficient permissions'); |
| 394 |
} |
| 395 |
|
| 396 |
|
| 397 |
$plugin = isset($_POST['plugin']) ? sanitize_text_field(wp_unslash($_POST['plugin'])) : ''; |
| 398 |
$action = isset($_POST['toggle_action']) ? sanitize_text_field(wp_unslash($_POST['toggle_action'])) : ''; |
| 399 |
|
| 400 |
if (empty($plugin) || empty($action)) { |
| 401 |
wp_send_json_error('Invalid plugin or action'); |
| 402 |
return; |
| 403 |
} |
| 404 |
|
| 405 |
|
| 406 |
|
| 407 |
if ($action === 'activate') { |
| 408 |
$result = activate_plugin($plugin); |
| 409 |
} else { |
| 410 |
$result = deactivate_plugins($plugin); |
| 411 |
} |
| 412 |
|
| 413 |
if (is_wp_error($result)) { |
| 414 |
wp_send_json_error($result->get_error_message()); |
| 415 |
} else { |
| 416 |
wp_send_json_success(); |
| 417 |
} |
| 418 |
} |
| 419 |
add_action('wp_ajax_toggle_plugin', 'wpmem_toggle_plugin'); |
| 420 |
|
| 421 |
|
| 422 |
|
| 423 |
|
| 424 |
|
| 425 |
|
| 426 |
function wpmem_table_exists($table_name) { |
| 427 |
global $wpdb; |
| 428 |
$full_table_name = $wpdb->prefix . $table_name; |
| 429 |
|
| 430 |
// Create a unique cache key |
| 431 |
$cache_key = 'wpmem_table_exists_' . md5($full_table_name); |
| 432 |
|
| 433 |
// Try to get the result from cache |
| 434 |
$table_exists = wp_cache_get($cache_key); |
| 435 |
|
| 436 |
if (false === $table_exists) { |
| 437 |
// Cache miss, perform the database query |
| 438 |
// There isn't a reliable way to check if a table exists in WordPress without making a direct database call |
| 439 |
$result = $wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 440 |
$wpdb->prepare( |
| 441 |
"SHOW TABLES LIKE %s", |
| 442 |
$full_table_name |
| 443 |
) |
| 444 |
); |
| 445 |
|
| 446 |
$table_exists = ($result === $full_table_name); |
| 447 |
|
| 448 |
// Cache the result for future use (cache for 1 hour) |
| 449 |
wp_cache_set($cache_key, $table_exists, '', 3600); |
| 450 |
} |
| 451 |
|
| 452 |
return $table_exists; |
| 453 |
} |
| 454 |
|
| 455 |
|
| 456 |
|
| 457 |
|
| 458 |
|
| 459 |
function wpmem_refresh_memory_usage() { |
| 460 |
check_ajax_referer('wp_memory_usage_nonce', 'nonce'); |
| 461 |
|
| 462 |
global $wpdb; |
| 463 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 464 |
|
| 465 |
// Check if the table exists |
| 466 |
if (!wpmem_table_exists('wpmem_plugin_history')) { |
| 467 |
wpmem_create_history_table(); |
| 468 |
} |
| 469 |
|
| 470 |
|
| 471 |
$current_memory = memory_get_usage(true); |
| 472 |
$formatted_memory = size_format($current_memory, 2); |
| 473 |
$percentage = round(($current_memory / wp_convert_hr_to_bytes(WP_MEMORY_LIMIT)) * 100, 2); |
| 474 |
|
| 475 |
// Save the measurement if a plugin was toggled |
| 476 |
if (isset($_POST['plugin']) && isset($_POST['toggle_action'])) { |
| 477 |
$plugin = sanitize_text_field(wp_unslash($_POST['plugin'])); |
| 478 |
$previous_memory = isset($_POST['previous_memory']) ? intval($_POST['previous_memory']) : 0; |
| 479 |
$memory_change = $current_memory - $previous_memory; |
| 480 |
wpmem_save_plugin_measurement($plugin, $memory_change); |
| 481 |
} |
| 482 |
|
| 483 |
wp_send_json_success(array( |
| 484 |
'current_memory' => $formatted_memory, |
| 485 |
'current_memory_bytes' => $current_memory, |
| 486 |
'percentage' => $percentage, |
| 487 |
)); |
| 488 |
} |
| 489 |
add_action('wp_ajax_refresh_memory_usage', 'wpmem_refresh_memory_usage'); |
| 490 |
|
| 491 |
|
| 492 |
|
| 493 |
|
| 494 |
add_action('admin_enqueue_scripts', 'wp_memory_usage_enqueue_styles'); |
| 495 |
|
| 496 |
function wp_memory_usage_enqueue_styles($hook) { |
| 497 |
// Load on all admin pages where the dashboard widget appears |
| 498 |
wp_enqueue_style('wp-memory-usage-styles', |
| 499 |
plugins_url('plugin-memory-usage.css', __FILE__), |
| 500 |
array(), |
| 501 |
filemtime(plugin_dir_path(__FILE__) . 'plugin-memory-usage.css') |
| 502 |
); |
| 503 |
} |
| 504 |
|
| 505 |
|
| 506 |
|
| 507 |
|
| 508 |
function wpmem_enqueue_scripts($hook) { |
| 509 |
if ($hook != 'toplevel_page_wp_plugin_memory_usage') { |
| 510 |
return; |
| 511 |
} |
| 512 |
wp_enqueue_script('wpmem-script', plugins_url('plugin-memory-usage.js', __FILE__), array(), '1.0', true); |
| 513 |
$nonce = wp_create_nonce('wp_memory_usage_nonce'); |
| 514 |
wp_localize_script('wpmem-script', 'wpmemData', array( |
| 515 |
'wpmem_ajaxurl' => admin_url('admin-ajax.php'), |
| 516 |
'nonce' => $nonce, |
| 517 |
'initialMemoryUsage' => memory_get_usage(true), |
| 518 |
'pluginHistory' => wpmem_get_all_plugin_history() |
| 519 |
)); |
| 520 |
} |
| 521 |
add_action('admin_enqueue_scripts', 'wpmem_enqueue_scripts'); |
| 522 |
|
| 523 |
|
| 524 |
|
| 525 |
|
| 526 |
|
| 527 |
function wpmem_create_history_table() { |
| 528 |
global $wpdb; |
| 529 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 530 |
$charset_collate = $wpdb->get_charset_collate(); |
| 531 |
|
| 532 |
$sql = "CREATE TABLE $table_name ( |
| 533 |
id mediumint(9) NOT NULL AUTO_INCREMENT, |
| 534 |
plugin_path varchar(255) NOT NULL, |
| 535 |
memory_change bigint(20) NOT NULL, |
| 536 |
zero_count int(11) NOT NULL DEFAULT 0, |
| 537 |
timestamp datetime DEFAULT CURRENT_TIMESTAMP NOT NULL, |
| 538 |
PRIMARY KEY (id) |
| 539 |
) $charset_collate;"; |
| 540 |
|
| 541 |
require_once(ABSPATH . 'wp-admin/includes/upgrade.php'); |
| 542 |
$result = dbDelta($sql); |
| 543 |
|
| 544 |
if (!empty($wpdb->last_error)) { |
| 545 |
return false; |
| 546 |
} |
| 547 |
return true; |
| 548 |
} |
| 549 |
|
| 550 |
|
| 551 |
register_activation_hook(__FILE__, 'wpmem_create_history_table'); |
| 552 |
|
| 553 |
|
| 554 |
|
| 555 |
function wpmem_save_plugin_measurement($plugin_path, $memory_change) { |
| 556 |
global $wpdb; |
| 557 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 558 |
|
| 559 |
// Convert memory_change to its absolute value |
| 560 |
$memory_change = abs($memory_change); |
| 561 |
|
| 562 |
if ($memory_change == 0) { |
| 563 |
// Increment zero count for the most recent entry |
| 564 |
$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 565 |
$wpdb->prepare( |
| 566 |
"UPDATE `" . esc_sql($table_name) . "` SET zero_count = zero_count + 1 |
| 567 |
WHERE plugin_path = %s |
| 568 |
ORDER BY timestamp DESC |
| 569 |
LIMIT 1", |
| 570 |
$plugin_path |
| 571 |
) |
| 572 |
); |
| 573 |
} else { |
| 574 |
// Insert new non-zero measurement |
| 575 |
$wpdb->insert( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 576 |
$table_name, |
| 577 |
array( |
| 578 |
'plugin_path' => $plugin_path, |
| 579 |
'memory_change' => $memory_change, |
| 580 |
'zero_count' => 0, |
| 581 |
) |
| 582 |
); |
| 583 |
} |
| 584 |
|
| 585 |
// Clear caches |
| 586 |
wpmem_clear_plugin_history_cache($plugin_path); |
| 587 |
wpmem_clear_all_plugin_history_cache(); |
| 588 |
wpmem_clear_average_memory_cache($plugin_path); |
| 589 |
} |
| 590 |
|
| 591 |
|
| 592 |
|
| 593 |
function wpmem_get_plugin_history($plugin_path) { |
| 594 |
global $wpdb; |
| 595 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 596 |
|
| 597 |
// Create a unique cache key for this query |
| 598 |
$cache_key = 'wpmem_plugin_history_' . md5($plugin_path); |
| 599 |
|
| 600 |
// Try to get the results from cache |
| 601 |
$results = wp_cache_get($cache_key); |
| 602 |
|
| 603 |
// If the results are not in cache, query the database |
| 604 |
if (false === $results) { |
| 605 |
$results = $wpdb->get_results( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 606 |
$wpdb->prepare( |
| 607 |
"SELECT memory_change, timestamp FROM `" . esc_sql($table_name) . "` WHERE plugin_path = %s ORDER BY timestamp DESC LIMIT 5", |
| 608 |
$plugin_path |
| 609 |
) |
| 610 |
); |
| 611 |
|
| 612 |
// Cache the results for future use |
| 613 |
wp_cache_set($cache_key, $results, '', 3600); // Cache for 1 hour |
| 614 |
} |
| 615 |
|
| 616 |
return $results; |
| 617 |
} |
| 618 |
|
| 619 |
|
| 620 |
|
| 621 |
function wpmem_clear_plugin_history_cache($plugin_path) { |
| 622 |
$cache_key = 'wpmem_plugin_history_' . md5($plugin_path); |
| 623 |
wp_cache_delete($cache_key); |
| 624 |
} |
| 625 |
|
| 626 |
|
| 627 |
|
| 628 |
add_action('wp_ajax_get_plugin_history', 'wpmem_get_plugin_history_ajax'); |
| 629 |
function wpmem_get_plugin_history_ajax() { |
| 630 |
check_ajax_referer('wp_memory_usage_nonce', 'nonce'); |
| 631 |
if (!isset($_POST['plugin'])) { |
| 632 |
wp_send_json_error('Plugin not specified'); |
| 633 |
} |
| 634 |
|
| 635 |
$plugin = sanitize_text_field(wp_unslash($_POST['plugin'])); |
| 636 |
$history = wpmem_get_plugin_history($plugin); |
| 637 |
|
| 638 |
wp_send_json_success($history); |
| 639 |
} |
| 640 |
|
| 641 |
|
| 642 |
|
| 643 |
|
| 644 |
|
| 645 |
|
| 646 |
|
| 647 |
|
| 648 |
function wpmem_get_all_plugin_history() { |
| 649 |
global $wpdb; |
| 650 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 651 |
|
| 652 |
// Create a unique cache key for this query |
| 653 |
$cache_key = 'wpmem_all_plugin_history'; |
| 654 |
|
| 655 |
// Try to get the results from cache |
| 656 |
$results = wp_cache_get($cache_key); |
| 657 |
|
| 658 |
// If the results are not in cache, query the database |
| 659 |
if (false === $results) { |
| 660 |
$results = $wpdb->get_results( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 661 |
$wpdb->prepare( |
| 662 |
"SELECT plugin_path, memory_change, timestamp |
| 663 |
FROM `" . esc_sql($table_name) . "` |
| 664 |
WHERE plugin_path IN (SELECT DISTINCT plugin_path FROM `" . esc_sql($table_name) . "`) |
| 665 |
ORDER BY timestamp DESC |
| 666 |
-- %d", |
| 667 |
1 |
| 668 |
) |
| 669 |
); |
| 670 |
|
| 671 |
// Cache the results for future use |
| 672 |
wp_cache_set($cache_key, $results, '', 3600); // Cache for 1 hour |
| 673 |
} |
| 674 |
|
| 675 |
// Process results... |
| 676 |
$history = array(); |
| 677 |
foreach ($results as $row) { |
| 678 |
if (!isset($history[$row->plugin_path])) { |
| 679 |
$history[$row->plugin_path] = array(); |
| 680 |
} |
| 681 |
if (count($history[$row->plugin_path]) < 5) { |
| 682 |
$history[$row->plugin_path][] = array( |
| 683 |
'memory_change' => $row->memory_change, |
| 684 |
'timestamp' => $row->timestamp |
| 685 |
); |
| 686 |
} |
| 687 |
} |
| 688 |
|
| 689 |
return $history; |
| 690 |
} |
| 691 |
|
| 692 |
|
| 693 |
|
| 694 |
|
| 695 |
function wpmem_clear_all_plugin_history_cache() { |
| 696 |
wp_cache_delete('wpmem_all_plugin_history'); |
| 697 |
} |
| 698 |
|
| 699 |
|
| 700 |
|
| 701 |
function wpmem_clear_table_exists_cache() { |
| 702 |
global $wpdb; |
| 703 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 704 |
$cache_key = 'wpmem_table_exists_' . $table_name; |
| 705 |
wp_cache_delete($cache_key); |
| 706 |
} |
| 707 |
|
| 708 |
|
| 709 |
// Reset table verification cache when changing plugin state |
| 710 |
register_activation_hook(__FILE__, 'wpmem_clear_table_exists_cache'); // Pre-activation check |
| 711 |
register_deactivation_hook(__FILE__, 'wpmem_clear_table_exists_cache'); // Post-deactivation cleanup |
| 712 |
|
| 713 |
|
| 714 |
|
| 715 |
|
| 716 |
|
| 717 |
function wpmem_get_average_memory_usage($plugin_path) { |
| 718 |
global $wpdb; |
| 719 |
$table_name = $wpdb->prefix . 'wpmem_plugin_history'; |
| 720 |
|
| 721 |
// Create a unique cache key |
| 722 |
$cache_key = 'wpmem_avg_memory_' . md5($plugin_path); |
| 723 |
|
| 724 |
// Try to get the result from cache |
| 725 |
$avg_memory = wp_cache_get($cache_key); |
| 726 |
|
| 727 |
if (false === $avg_memory) { |
| 728 |
// Cache miss, perform the database query |
| 729 |
$result = $wpdb->get_row( // phpcs:ignore WordPress.DB.DirectDatabaseQuery |
| 730 |
$wpdb->prepare( |
| 731 |
"SELECT SUM(memory_change) as total_change, |
| 732 |
COUNT(*) as non_zero_count, |
| 733 |
SUM(zero_count) as zero_count |
| 734 |
FROM `" . esc_sql($table_name) . "` |
| 735 |
WHERE plugin_path = %s", |
| 736 |
$plugin_path |
| 737 |
) |
| 738 |
); |
| 739 |
|
| 740 |
if ($result) { |
| 741 |
$total_count = $result->non_zero_count + $result->zero_count; |
| 742 |
$avg_memory = $total_count > 0 ? ($result->total_change / $total_count) / (1024 * 1024) : 0; |
| 743 |
$avg_memory = round($avg_memory, 2); // Round to 2 decimal places |
| 744 |
} else { |
| 745 |
$avg_memory = 0; |
| 746 |
} |
| 747 |
|
| 748 |
// Cache the result for future use (cache for 5 minutes) |
| 749 |
wp_cache_set($cache_key, $avg_memory, '', 300); |
| 750 |
} |
| 751 |
|
| 752 |
return $avg_memory; |
| 753 |
} |
| 754 |
|
| 755 |
|
| 756 |
|
| 757 |
function wpmem_clear_average_memory_cache($plugin_path) { |
| 758 |
$cache_key = 'wpmem_avg_memory_' . md5($plugin_path); |
| 759 |
wp_cache_delete($cache_key); |
| 760 |
} |
| 761 |
|
| 762 |
|
| 763 |
|
| 764 |
add_action('wp_ajax_update_average_memory', 'wpmem_update_average_memory'); |
| 765 |
add_action('wp_ajax_nopriv_update_average_memory', 'wpmem_update_average_memory'); |
| 766 |
|
| 767 |
function wpmem_update_average_memory() { |
| 768 |
// Check nonce for security |
| 769 |
if (!isset($_POST['nonce'])) { |
| 770 |
wp_send_json_error('Security token not provided'); |
| 771 |
} |
| 772 |
|
| 773 |
$nonce = sanitize_text_field(wp_unslash($_POST['nonce'])); |
| 774 |
if (!wp_verify_nonce($nonce, 'wp_memory_usage_nonce')) { |
| 775 |
wp_send_json_error('Invalid security token'); |
| 776 |
} |
| 777 |
|
| 778 |
if (!isset($_POST['plugin_path'])) { |
| 779 |
wp_send_json_error('Plugin path not provided'); |
| 780 |
} |
| 781 |
|
| 782 |
$plugin_path = sanitize_text_field(wp_unslash($_POST['plugin_path'])); |
| 783 |
$avg_memory = wpmem_get_average_memory_usage($plugin_path); |
| 784 |
|
| 785 |
wp_send_json_success(array('avg_memory' => $avg_memory)); |
| 786 |
} |
| 787 |
|
| 788 |
|
| 789 |
|
| 790 |
|
| 791 |
|
| 792 |
|
| 793 |
function wpmem_add_increase_memory_button($content) { |
| 794 |
$wp_memory_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
| 795 |
$current_memory_usage = memory_get_usage(true); |
| 796 |
|
| 797 |
if ($current_memory_usage > $wp_memory_limit) { |
| 798 |
$content .= '<button id="increase-memory-limit" class="button">Increase Memory Limit</button>'; |
| 799 |
$content .= '<span id="memory-increase-result"></span>'; |
| 800 |
} |
| 801 |
|
| 802 |
return $content; |
| 803 |
} |
| 804 |
add_filter('wpmem_memory_usage_content', 'wpmem_add_increase_memory_button'); |
| 805 |
|
| 806 |
|
| 807 |
|
| 808 |
|
| 809 |
function wpmem_increase_memory_limit() { |
| 810 |
check_ajax_referer('wp_memory_usage_nonce', 'nonce'); |
| 811 |
|
| 812 |
if (!current_user_can('manage_options')) { |
| 813 |
wp_send_json_error(array('message' => 'Insufficient permissions')); |
| 814 |
} |
| 815 |
|
| 816 |
$current_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
| 817 |
|
| 818 |
// If current limit is 160MB or less, double it. Otherwise, increase by 25%. |
| 819 |
if ($current_limit < 160 * 1024 * 1024) { // 160 MB in bytes |
| 820 |
$new_limit = $current_limit * 2; |
| 821 |
} else { |
| 822 |
$new_limit = (int)($current_limit * 1.25); // Increase by 25% |
| 823 |
} |
| 824 |
|
| 825 |
// Optional: Cap the maximum limit to avoid runaway values (e.g., 512MB) |
| 826 |
$max_limit = 512 * 1024 * 1024; // 512 MB in bytes |
| 827 |
if ($new_limit > $max_limit) { |
| 828 |
$new_limit = $max_limit; |
| 829 |
} |
| 830 |
|
| 831 |
// Attempt to increase the limit |
| 832 |
if (wpmem_set_memory_limit($new_limit)) { |
| 833 |
wp_send_json_success(array('new_limit' => size_format($new_limit))); |
| 834 |
} else { |
| 835 |
wp_send_json_error(array('message' => 'Unable to increase memory limit. You may need to contact your hosting provider.')); |
| 836 |
} |
| 837 |
} |
| 838 |
add_action('wp_ajax_increase_memory_limit', 'wpmem_increase_memory_limit'); |
| 839 |
|
| 840 |
|
| 841 |
|
| 842 |
function wpmem_set_memory_limit($new_limit) { |
| 843 |
global $wp_filesystem; |
| 844 |
|
| 845 |
// Initialize the WP filesystem |
| 846 |
if (empty($wp_filesystem)) { |
| 847 |
require_once (ABSPATH . '/wp-admin/includes/file.php'); |
| 848 |
WP_Filesystem(); |
| 849 |
} |
| 850 |
|
| 851 |
$wp_config_file = ABSPATH . 'wp-config.php'; |
| 852 |
$config_content = $wp_filesystem->get_contents($wp_config_file); |
| 853 |
|
| 854 |
if ($config_content === false) { |
| 855 |
return false; |
| 856 |
} |
| 857 |
|
| 858 |
$new_limit_formatted = size_format($new_limit); |
| 859 |
|
| 860 |
if (preg_match("/define\(\s*'WP_MEMORY_LIMIT',\s*'.*?'\s*\);/", $config_content)) { |
| 861 |
// WP_MEMORY_LIMIT is already defined, so update it |
| 862 |
$new_content = preg_replace( |
| 863 |
"/define\(\s*'WP_MEMORY_LIMIT',\s*'.*?'\s*\);/", |
| 864 |
"define('WP_MEMORY_LIMIT', '$new_limit_formatted');", |
| 865 |
$config_content |
| 866 |
); |
| 867 |
} else { |
| 868 |
// WP_MEMORY_LIMIT is not defined, so add it |
| 869 |
$new_content = preg_replace( |
| 870 |
"/<\?php/", |
| 871 |
"<?php\ndefine('WP_MEMORY_LIMIT', '$new_limit_formatted');", |
| 872 |
$config_content, |
| 873 |
1 |
| 874 |
); |
| 875 |
} |
| 876 |
|
| 877 |
if ($wp_filesystem->put_contents($wp_config_file, $new_content) === false) { |
| 878 |
return false; |
| 879 |
} |
| 880 |
|
| 881 |
return true; |
| 882 |
} |
| 883 |
|
| 884 |
|
| 885 |
|
| 886 |
|
| 887 |
|
| 888 |
|
| 889 |
function wpmem_add_settings_link($links) { |
| 890 |
$settings_link = '<a href="' . admin_url('admin.php?page=wp_plugin_memory_usage') . '">Settings</a>'; |
| 891 |
array_unshift($links, $settings_link); |
| 892 |
return $links; |
| 893 |
} |
| 894 |
|
| 895 |
$plugin = plugin_basename(__FILE__); |
| 896 |
add_filter("plugin_action_links_$plugin", 'wpmem_add_settings_link'); |
| 897 |
|
| 898 |
|
| 899 |
|
| 900 |
|
| 901 |
|
| 902 |
function wpmem_add_memory_to_admin_bar($wp_admin_bar) { |
| 903 |
$wp_memory_limit = wp_convert_hr_to_bytes(WP_MEMORY_LIMIT); |
| 904 |
$current_memory_usage = memory_get_usage(true); |
| 905 |
$percentage_used = round(($current_memory_usage / $wp_memory_limit) * 100, 1); |
| 906 |
|
| 907 |
$wp_admin_bar->add_node(array( |
| 908 |
'id' => 'wpmem_memory_usage', |
| 909 |
'title' => 'MEM: ' . $percentage_used . '%', |
| 910 |
'href' => admin_url('admin.php?page=wp_plugin_memory_usage'), |
| 911 |
'meta' => array( |
| 912 |
'title' => 'Current memory usage', |
| 913 |
), |
| 914 |
)); |
| 915 |
} |
| 916 |
add_action('admin_bar_menu', 'wpmem_add_memory_to_admin_bar', 100); |
| 917 |
|
| 918 |
|
| 919 |
|
| 920 |
|
| 921 |
|
| 922 |
|
| 923 |
?> |
