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<?php |
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/** |
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* Plugin Name: Easy Search Replace |
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* Description: Easy Search Replace is a plugin that allows you to search and replace text within your WordPress. |
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* Version: 1.1.2 |
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* Author: Uzair |
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* Author URI: https://easywpstuff.com |
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* Text Domain: easy-search-replace |
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* Domain Path: /languages |
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* License: GNU General Public License v2 or later |
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* Requires at least: 5.0 |
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* Requires PHP: 7.2 |
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*/ |
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|
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// Exit if accessed directly |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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require_once 'inc/options.php'; |
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require_once 'lib/dom.php'; |
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|
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/** |
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* Perform search and replace on the output buffer. |
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* |
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* @param string $buffer The output buffer. |
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* @return string The modified buffer. |
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*/ |
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function esrn_search_replace_start( $buffer ) { |
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global $post; |
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|
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$options = get_option( 'esrn_search_replace_options' ); |
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$fields = isset( $options['fields'] ) ? $options['fields'] : []; |
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|
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if ( empty( $fields ) ) { |
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return $buffer; |
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} |
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|
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// Get current post data |
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$current_post_id = is_singular() && isset( $post->ID ) ? $post->ID : null; |
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$current_type = is_singular() && isset( $post->post_type ) ? $post->post_type : null; |
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if ( is_home() && get_option( 'page_for_posts' ) ) { |
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$current_post_id = (int) get_option( 'page_for_posts' ); |
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$current_type = 'page'; |
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} |
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$current_url = home_url( add_query_arg( [], $_SERVER['REQUEST_URI'] ) ); |
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|
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// First, apply all non-selector (global) replacements sequentially |
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foreach ( $fields as $field ) { |
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if ( ! empty( $field['selector'] ) ) { |
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continue; // Skip selector-based for now |
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} |
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|
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if ( ! esrn_should_apply_field( $field, $current_type, $current_post_id, $current_url ) ) { |
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continue; |
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} |
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|
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$search = $field['search']; |
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$replace = $field['replace']; |
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|
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if ( isset( $field['ignore_case'] ) && $field['ignore_case'] ) { |
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$buffer = str_ireplace( $search, $replace, $buffer ); |
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} else { |
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$buffer = str_replace( $search, $replace, $buffer ); |
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} |
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} |
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|
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// Check if there are any selector-based fields that apply |
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$has_selector = false; |
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foreach ( $fields as $field ) { |
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if ( empty( $field['selector'] ) ) { |
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continue; |
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} |
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|
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if ( esrn_should_apply_field( $field, $current_type, $current_post_id, $current_url ) ) { |
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$has_selector = true; |
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break; |
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} |
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} |
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|
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if ( ! $has_selector ) { |
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return $buffer; |
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} |
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|
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// Parse DOM only once for selector-based replacements |
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$dom = esr_str_get_html( $buffer, false, true, 'UTF-8', false, PHP_EOL, ' ' ); |
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if ( ! $dom ) { |
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return $buffer; // Fallback gracefully if parsing fails |
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} |
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|
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// Apply selector-based replacements |
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foreach ( $fields as $field ) { |
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if ( empty( $field['selector'] ) ) { |
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continue; |
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} |
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|
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if ( ! esrn_should_apply_field( $field, $current_type, $current_post_id, $current_url ) ) { |
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continue; |
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} |
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|
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$search = $field['search']; |
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$replace = $field['replace']; |
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$selector = $field['selector']; |
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|
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$elements = $dom->find( $selector ); |
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foreach ( $elements as $element ) { |
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if ( isset( $field['ignore_case'] ) && $field['ignore_case'] ) { |
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$element->innertext = str_ireplace( $search, $replace, $element->innertext ); |
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} else { |
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$element->innertext = str_replace( $search, $replace, $element->innertext ); |
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} |
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} |
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} |
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|
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$buffer = $dom->save(); |
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|
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return $buffer; |
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} |
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|
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/** |
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* Check if a field should be applied based on conditions. |
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* |
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* @param array $field The field options. |
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* @param string $current_type Current post type. |
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* @param int $current_post_id Current post ID. |
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* @param string $current_url Current URL. |
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* @return bool Whether to apply the field. |
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*/ |
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function esrn_should_apply_field( $field, $current_type, $current_post_id, $current_url ) { |
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$types = isset( $field['post_types'] ) ? (array) $field['post_types'] : []; |
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$ids = isset( $field['post_ids'] ) ? $field['post_ids'] : ''; |
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$urls = isset( $field['urls'] ) ? $field['urls'] : ''; |
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|
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// Handle post type (AND condition) |
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if ( ! empty( $types ) && $current_type && ! in_array( $current_type, $types, true ) ) { |
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return false; |
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} |
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|
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// Handle Post IDs and URLs as OR |
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$match_ids = false; |
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$match_urls = false; |
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|
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if ( ! empty( $ids ) ) { |
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$allowed_ids = array_map( 'trim', explode( ',', $ids ) ); |
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if ( $current_post_id && in_array( (string) $current_post_id, $allowed_ids, true ) ) { |
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$match_ids = true; |
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} |
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} |
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|
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if ( ! empty( $urls ) ) { |
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$allowed_urls = array_filter( array_map( 'trim', explode( "\n", $urls ) ) ); |
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foreach ( $allowed_urls as $url ) { |
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if ( $url && stripos( $current_url, $url ) !== false ) { |
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$match_urls = true; |
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break; |
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} |
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} |
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} |
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|
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// If either IDs or URLs are set, at least one must match |
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if ( ( $ids || $urls ) && ! ( $match_ids || $match_urls ) ) { |
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return false; |
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} |
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|
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return true; |
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} |
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|
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// Start output buffering |
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function esrn_search_replace_buffer_start() { |
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// Only start if there are fields to process |
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$options = get_option( 'esrn_search_replace_options' ); |
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if ( ! empty( $options['fields'] ) ) { |
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ob_start( 'esrn_search_replace_start' ); |
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} |
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} |
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add_action( 'template_redirect', 'esrn_search_replace_buffer_start', 101 ); |
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|
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// Enqueue admin scripts and styles |
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function esrn_enqueue_admin_scripts() { |
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if ( isset( $_GET['page'] ) && $_GET['page'] === 'easy_search_replace' ) { |
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wp_enqueue_script( 'esrn_search_replace-script', plugin_dir_url( __FILE__ ) . 'assets/admin.js', array( 'jquery' ), '1.1.1', true ); |
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wp_enqueue_style( 'esrn_search_replace-style', plugin_dir_url( __FILE__ ) . 'assets/admin.css', '', '1.1.1' ); |
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if ( wp_script_is( 'select2', 'registered' ) ) { |
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wp_enqueue_style( 'select2' ); |
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wp_enqueue_script( 'select2' ); |
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} else { |
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wp_enqueue_style( 'esrn_select2', plugin_dir_url( __FILE__ ) . 'assets/select2.css', array(), '4.0.13' ); |
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wp_enqueue_script( 'esrn_select2', plugin_dir_url( __FILE__ ) . 'assets/select2.js', array( 'jquery' ), '4.0.13', true ); |
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} |
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} |
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} |
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add_action( 'admin_enqueue_scripts', 'esrn_enqueue_admin_scripts' ); |
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|
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// Add settings link to plugin page |
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function esrn_add_settings_link( $links ) { |
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$settings_link = '<a href="options-general.php?page=easy_search_replace">' . __( 'Settings', 'easy-search-replace' ) . '</a>'; |
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array_unshift( $links, $settings_link ); |
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return $links; |
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} |
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add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'esrn_add_settings_link' ); |
