Filter hook 'pre_wp_nav_menu'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into pre_wp_nav_menu
add_filter('pre_wp_nav_menu', 'my_custom_filter', 10, 2);

function my_custom_filter($output, $args) {
    // Your custom filtering logic here
    return $output;
}

Source Code Context

<?php
 113  	 * @see wp_nav_menu()
 114  	 *
 115  	 * @param string|null $output Nav menu output to short-circuit with. Default null.
 116  	 * @param stdClass    $args   An object containing wp_nav_menu() arguments.
 117  	 */
 118  	$nav_menu = apply_filters( 'pre_wp_nav_menu', null, $args );
 119  
 120  	if ( null !== $nav_menu ) {
 121  		if ( $args->echo ) {
 122  			echo $nav_menu;
 123  			return;

PHP Documentation

<?php
/**
	 * Filters whether to short-circuit the wp_nav_menu() output.
	 *
	 * Returning a non-null value from the filter will short-circuit wp_nav_menu(),
	 * echoing that value if $args->echo is true, returning that value otherwise.
	 *
	 * @since 3.9.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string|null $output Nav menu output to short-circuit with. Default null.
	 * @param stdClass    $args   An object containing wp_nav_menu() arguments.
	 */