_wp_check_existing_file_names( string $filename, array $files )
Helper function to check if a file name could match an existing image sub-size file name.
Parameters
- $filename
-
(string) (Required) The file name to check.
- $files
-
(array) (Required) An array of existing files in the directory.
Return
(bool) True if the tested file name could match an existing file, false otherwise.
Source
File: wp-includes/functions.php
function _wp_check_existing_file_names( $filename, $files ) { $fname = pathinfo( $filename, PATHINFO_FILENAME ); $ext = pathinfo( $filename, PATHINFO_EXTENSION ); // Edge case, file names like `.ext`. if ( empty( $fname ) ) { return false; } if ( $ext ) { $ext = ".$ext"; } $regex = '/^' . preg_quote( $fname ) . '-(?:\d+x\d+|scaled|rotated)' . preg_quote( $ext ) . '$/i'; foreach ( $files as $file ) { if ( preg_match( $regex, $file ) ) { return true; } } return false; }
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Changelog
Version | Description |
---|---|
5.3.1 | Introduced. |