تابع ووکامرسی wc_list_pluck دریافت فیلد های مشخص از آرایه های چند بعدی

تابع ووکامرسی wc_list_pluck – دریافت فیلد های مشخص از آرایه های چند بعدی

(array) wc_list_pluck( (array) $list, (int|string) $callback_or_field, (null) $index_key = null ); 

if ( !function_exists( 'wc_list_pluck' ) ) { 
    require_once ABSPATH . PLUGINDIR . 'woocommerce/includes/wc-core-functions.php'; 
} 
  
// List of objects or arrays 
$list = array(); 
  
// Callback method from the object to place instead of the entire object 
$callback_or_field = null; 
  
// Optional. Field from the object to use as keys for the new array. 
// Default null. 
$index_key = null; 
  
// NOTICE! Understand what this does before running. 
$result = wc_list_pluck($list, $callback_or_field, $index_key); 
    

function wc_list_pluck( $list, $callback_or_field, $index_key = null ) { 
    // Use wp_list_pluck if this isn't a callback 
    $first_el = current( $list ); 
    if ( ! is_object( $first_el ) || ! is_callable( array( $first_el, $callback_or_field ) ) ) { 
        return wp_list_pluck( $list, $callback_or_field, $index_key ); 
    } 
    if ( ! $index_key ) { 
        /** 
         * This is simple. Could at some point wrap array_column() 
         * if we knew we had an array of arrays. 
         */ 
        foreach ( $list as $key => $value ) { 
            $list[ $key ] = $value->{$callback_or_field}(); 
        } 
        return $list; 
    } 
 
    /** 
     * When index_key is not set for a particular item, push the value 
     * to the end of the stack. This is how array_column() behaves. 
     */ 
    $newlist = array(); 
    foreach ( $list as $value ) { 
        if ( isset( $value->$index_key ) ) { 
            $newlist[ $value->$index_key ] = $value->{$callback_or_field}(); 
        } else { 
            $newlist[] = $value->{$callback_or_field}(); 
        } 
    } 
    return $newlist; 
}