PHP 5.5.16 is released

is_executable

(PHP 4, PHP 5)

is_executableTells whether the filename is executable

Description

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.

Changelog

Version Description
5.0.0 is_executable() became available with Windows

Examples

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.

Notes

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.

See Also

  • is_file() - Tells whether the filename is a regular file
  • is_link() - Tells whether the filename is a symbolic link

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User Contributed Notes 1 note

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2
david at littlesystems dot com dot au
12 years ago
to test whether the directory /home/david is executable (regardless of whether it is readable or writeable), issue the command:
$my_isWriteable = @file_exists("/home/david/.")

the @ gets rid of the warning when this command fails when the directory is not executable.
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