nocache_headers

Filter Hook

Description

Filters the cache-controlling HTTP headers that are used to prevent caching.

Hook Information

File Location	`wp-includes/functions.php` View on GitHub
Hook Type	Filter
Line Number	`1520`

Hook Parameters

Type	Name	Description
`array`	`$headers`	Header names and field values.

Usage Examples

Basic Usage

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

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

Source Code Context

wp-includes/functions.php:1520 - How this hook is used in WordPress core

<?php
1515  		 *
1516  		 * @see wp_get_nocache_headers()
1517  		 *
1518  		 * @param array $headers Header names and field values.
1519  		 */
1520  		$headers = (array) apply_filters( 'nocache_headers', $headers );
1521  	}
1522  	$headers['Last-Modified'] = false;
1523  	return $headers;
1524  }
1525

PHP Documentation

<?php
/**
		 * Filters the cache-controlling HTTP headers that are used to prevent caching.
		 *
		 * @since 2.8.0
		 *
		 * @see wp_get_nocache_headers()
		 *
		 * @param array $headers Header names and field values.
		 */

Quick Info

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

Links

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