wp_list_pluck

函数



      wp_list_pluck ( $list, $field, $index_key = null )

参数

(array)
$list
List of objects or arrays.
Required: 是
(int|string)
$field
Field from the object to place instead of the entire object.
Required: 是
(int|string)
$index_key
Optional. Field from the object to use as keys for the new array. Default null.
Required: 否

Default: null

返回值

(array) Array of found values. If `$index_key` is set, an array of found values with keys corresponding to `$index_key`. If `$index_key` is null, array keys from the original `$list` will be preserved in the results.

定义位置

wp-includes/functions.php
, line 5188

引入: 3.1.0

弃用: –

Plucks a certain field out of each object or array in an array.

This has the same functionality and prototype of
array_column() (PHP 5.5) but also supports objects.

function wp_list_pluck( $list, $field, $index_key = null ) {
	if ( ! is_array( $list ) ) {
		return array();
	}

	$util = new WP_List_Util( $list );

	return $util->pluck( $field, $index_key );
}

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