# posts-data-table/1.3.2/lib/Admin/Settings_API_Helper.php

Posts Table with Search & Sort, version 1.3.2. 152 lines.

- Page: https://pluginprobe.com/plugins/posts-data-table/1.3.2/code/lib/Admin/Settings_API_Helper.php
- Raw: https://pluginprobe.com/plugins/posts-data-table/1.3.2/raw/lib/Admin/Settings_API_Helper.php
- Modified: 2020-08-13T17:46:16+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/posts-data-table/1.3.2/code/lib/Admin/Settings_API_Helper.php#L10-L20`.

```php
<?php
namespace Barn2\PTS_Lib\Admin;

/**
 * Helper functions for the WordPress Settings API.
 *
 * @package   Barn2/barn2-lib
 * @author    Barn2 Plugins <info@barn2.co.uk>
 * @license   GPL-3.0
 * @copyright Barn2 Media Ltd
 * @version   1.2
 */
class Settings_API_Helper {

    public static function add_settings_section( $section, $page, $title, $description_callback, $settings = false ) {
        if ( ! \is_callable( $description_callback ) ) {
            $description_callback = '__return_false';
        }
        \add_settings_section( $section, $title, $description_callback, $page );
        self::add_settings_fields( $settings, $section, $page );
    }

    public static function add_settings_fields( $settings, $section, $page ) {
        if ( ! $settings || ! \is_array( $settings ) ) {
            return;
        }
        foreach ( $settings as $setting ) {
            if ( ! \is_array( $setting ) || empty( $setting['id'] ) ) {
                continue;
            }

            $args = \wp_parse_args( $setting, \array_fill_keys( array( 'id', 'type', 'desc', 'label', 'title', 'class', 'field_class', 'default', 'suffix', 'custom_attributes' ), '' ) );

            $args['input_class'] = $args['class'];
            unset( $args['class'] );

            $args['class']     = $args['field_class'];
            $args['label_for'] = $args['id'];

            $setting_callback = array( __CLASS__, 'settings_field_' . $args['type'] );

            if ( \is_callable( $setting_callback ) ) {
                \add_settings_field( $args['id'], $args['title'], $setting_callback, $page, $section, $args );
            }
        }
    }

    public static function settings_field_text( $args ) {
        $class = ! empty( $args['input_class'] ) ? $args['input_class'] : 'regular-text';
        $type  = ! empty( $args['type'] ) ? $args['type'] : 'text';
        ?>
        <input id="<?php echo \esc_attr( $args['id'] ); ?>" name="<?php echo \esc_attr( $args['id'] ); ?>" class="<?php echo \esc_attr( $class ); ?>" type="<?php echo \esc_attr( $type ); ?>" value="<?php echo \esc_attr( self::get_value( $args['id'], $args['default'] ) ); ?>"<?php self::custom_attributes( $args ); ?>/><?php
        if ( ! empty( $args['suffix'] ) ) {
            echo ' ' . \esc_html( $args['suffix'] );
        }
        self::field_description( $args );
    }

    public static function settings_field_number( $args ) {
        $args['input_class'] = ! empty( $args['input_class'] ) ? $args['input_class'] : 'small-text';
        $args['type']        = 'number';
        self::settings_field_text( $args );
    }

    public static function settings_field_textarea( $args ) {
        $class = ! empty( $args['input_class'] ) ? $args['input_class'] : 'large-text';
        $rows  = isset( $args['rows'] ) ? \absint( $args['rows'] ) : 4;
        ?>
        <textarea id="<?php echo \esc_attr( $args['id'] ); ?>" name="<?php echo \esc_attr( $args['id'] ); ?>" class="<?php echo \esc_attr( $class ); ?>" rows="<?php echo \esc_attr( $rows ); ?>"<?php self::custom_attributes( $args ); ?>><?php echo \esc_textarea( self::get_value( $args['id'], $args['default'] ) ); ?></textarea>
        <?php
        self::field_description( $args );
    }

    public static function settings_field_select( $args ) {
        $current_value = self::get_value( $args['id'], $args['default'] );
        ?>
        <select id="<?php echo \esc_attr( $args['id'] ); ?>" name="<?php echo \esc_attr( $args['id'] ); ?>" class="<?php echo \esc_attr( $args['input_class'] ); ?>"<?php self::custom_attributes( $args ); ?>>
            <?php foreach ( $args['options'] as $value => $option ) : ?>
                <option value="<?php echo \esc_attr( $value ); ?>"<?php \selected( $value, $current_value ); ?>><?php echo \esc_html( $option ); ?></option>
            <?php endforeach; ?>
        </select><?php
        if ( ! empty( $args['suffix'] ) ) {
            echo ' ' . \esc_html( $args['suffix'] );
        }
        self::field_description( $args );
    }

    public static function settings_field_checkbox( $args ) {
        $current_value = self::get_value( $args['id'], $args['default'] );
        ?>
        <fieldset>
            <legend class="screen-reader-text"><?php echo \esc_html( $args['title'] ); ?></legend>
            <label for="<?php echo \esc_attr( $args['id'] ); ?>">
                <input id="<?php echo \esc_attr( $args['id'] ); ?>" name="<?php echo \esc_attr( $args['id'] ); ?>" class="<?php echo \esc_attr( $args['input_class'] ); ?>" type="checkbox"<?php \checked( $current_value ); ?> value="1"<?php self::custom_attributes( $args ); ?>/>
                <?php
                if ( ! empty( $args['label'] ) ) {
                    echo \esc_html( $args['label'] );
                }
                ?>
            </label>
        </fieldset>
        <?php self::field_description( $args ); ?>
        <?php
    }

    public static function settings_field_hidden( $args ) {
        ?>
        <input type="hidden" name="<?php echo \esc_attr( $args['id'] ); ?>" value="<?php echo \esc_attr( $args['default'] ); ?>" />
        <?php
    }

    private static function field_description( $args ) {
        if ( ! empty( $args['desc'] ) ) {
            echo '<p class="description">' . $args['desc'] . '</p>';
        }
    }

    private static function custom_attributes( $args ) {
        echo self::get_custom_attributes( $args );
    }

    private static function get_custom_attributes( $args ) {
        if ( empty( $args['custom_attributes'] ) ) {
            return;
        }
        $custom_atts = $args['custom_attributes'];
        $result      = '';

        foreach ( $custom_atts as $att => $value ) {
            $result .= \sprintf( ' %s="%s"', \sanitize_key( $att ), \esc_attr( $value ) );
        }
        return $result;
    }

    private static function get_value( $option, $default = false ) {
        $value        = '';
        $matches      = array();
        $subkey_match = \preg_match( '/(\w+)\[(\w+)\]/U', $option, $matches );

        if ( $subkey_match && isset( $matches[1], $matches[2] ) ) {
            $subkey        = $matches[2];
            $parent_option = \get_option( $matches[1], array() );
            $value         = isset( $parent_option[$subkey] ) ? $parent_option[$subkey] : $default;
        } else {
            $value = \get_option( $option, $default );
        }

        return $value;
    }

}

```