is_executable in PHP

is_executable — Tells whether the filename is executable
Syntax:

bool is_executable ( string $filename )
Tells whether the filename is executable.

Parameters:

filename
Path to the file.

Return values: Returns TRUE if the filename exists and is executable, or FALSE on error.



Example #1 is_executable() example

<?php

$file = '/home/vincent/somefile.sh';

if (is_executable($file)) {
    echo $file.' is executable';
} else {
    echo $file.' is not executable';
}

?>
Errors/Exceptions ¶

Upon failure, an E_WARNING is emitted.



Note: The results of this function are cached. See clearstatcache() for more details.
Tip
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to Supported Protocols and Wrappers to determine which wrappers support stat() family of functionality.