postmeta_form_limit

Filter Hook

Description

Filters the number of custom fields to retrieve for the drop-down in the Custom Fields meta box.

Hook Information

File Location	`wp-admin/includes/template.php` View on GitHub
Hook Type	Filter
Line Number	`718`

Hook Parameters

Type	Name	Description
`int`	`$limit`	Number of custom fields to retrieve. Default 30.

Usage Examples

Basic Usage

<?php
// Hook into postmeta_form_limit
add_filter('postmeta_form_limit', 'my_custom_filter', 10, 1);

function my_custom_filter($limit) {
    // Your custom filtering logic here
    return $limit;
}

Source Code Context

wp-admin/includes/template.php:718 - How this hook is used in WordPress core

<?php
 713  		 *
 714  		 * @since 2.1.0
 715  		 *
 716  		 * @param int $limit Number of custom fields to retrieve. Default 30.
 717  		 */
 718  		$limit = apply_filters( 'postmeta_form_limit', 30 );
 719  
 720  		$keys = $wpdb->get_col(
 721  			$wpdb->prepare(
 722  				"SELECT DISTINCT meta_key
 723  				FROM $wpdb->postmeta

PHP Documentation

<?php
/**
		 * Filters the number of custom fields to retrieve for the drop-down
		 * in the Custom Fields meta box.
		 *
		 * @since 2.1.0
		 *
		 * @param int $limit Number of custom fields to retrieve. Default 30.
		 */

Quick Info

Hook Type: Filter
Parameters: 1
File: wp-admin/includes/template.php

Links

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