wp_check_filetype() WordPress Function
The wp_check_filetype() function is used to check the file type of a given file. This function returns the file type in the form of a string. The function is useful for verifying the file type before performing any operations on the file.
wp_check_filetype( string $filename, string[] $mimes = null ) #
Retrieve the file type from the file name.
Description
You can optionally define the mime array, if needed.
Parameters
- $filename
(string)(Required)File name or path.
- $mimes
(string[])(Optional) Array of allowed mime types keyed by their file extension regex.
Default value: null
Return
(array) Values for the extension and mime type.
- 'ext'
(string|false) File extension, or false if the file doesn't match a mime type. - 'type'
(string|false) File mime type, or false if the file doesn't match a mime type.
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' );
}
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Changelog
| Version | Description |
|---|---|
| 2.0.4 | Introduced. |