wp_check_filetype( string $filename, string[] $mimes = null )

Retrieves the file type from the file name.


Description

You can optionally define the mime array, if needed.


Parameters

$filename

(Required) File name or path.

$mimes

(Optional) Array of allowed mime types keyed by their file extension regex.<br> Defaults to the result of get_allowed_mime_types().

Default value: null


Return

(array) Values for the extension and mime type.<br>

  • 'ext'
    (string|false) File extension, or false if the file doesn't match a mime type.<br>
  • 'type'
    (string|false) File mime type, or false if the file doesn't match a mime type.<br>


Source

File: wp-includes/functions.php

function wp_check_filetype( $filename, $mimes = null ) {
	if ( empty($mimes) )
		$mimes = get_allowed_mime_types();
	$type = false;
	$ext = false;

	foreach ( $mimes as $ext_preg => $mime_match ) {
		$ext_preg = '!\.(' . $ext_preg . ')$!i';
		if ( preg_match( $ext_preg, $filename, $ext_matches ) ) {
			$type = $mime_match;
			$ext = $ext_matches[1];
			break;
		}
	}

	return compact( 'ext', 'type' );
}


Changelog

Changelog
Version Description
2.0.4 Introduced.