Filter hook '{$action}_prefilter'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into {$action}_prefilter
add_filter('{$action}_prefilter', 'my_custom_filter', 10, 1);

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

Source Code Context

<?php
 828  	 *     @type string $tmp_name The temporary filename of the file in which the uploaded file was stored on the server.
 829  	 *     @type int    $size     The size, in bytes, of the uploaded file.
 830  	 *     @type int    $error    The error code associated with this file upload.
 831  	 * }
 832  	 */
 833  	$file = apply_filters( "{$action}_prefilter", $file );
 834  
 835  	/**
 836  	 * Filters the override parameters for a file before it is uploaded to WordPress.
 837  	 *
 838  	 * The dynamic portion of the hook name, `$action`, refers to the post action.

PHP Documentation

<?php
/**
	 * Filters the data for a file before it is uploaded to WordPress.
	 *
	 * The dynamic portion of the hook name, `$action`, refers to the post action.
	 *
	 * Possible hook names include:
	 *
	 *  - `wp_handle_sideload_prefilter`
	 *  - `wp_handle_upload_prefilter`
	 *
	 * @since 2.9.0 as 'wp_handle_upload_prefilter'.
	 * @since 4.0.0 Converted to a dynamic hook with `$action`.
	 *
	 * @param array $file {
	 *     Reference to a single element from `$_FILES`.
	 *
	 *     @type string $name     The original name of the file on the client machine.
	 *     @type string $type     The mime type of the file, if the browser provided this information.
	 *     @type string $tmp_name The temporary filename of the file in which the uploaded file was stored on the server.
	 *     @type int    $size     The size, in bytes, of the uploaded file.
	 *     @type int    $error    The error code associated with this file upload.
	 * }
	 */