is_executable
Tells whether the filename is executable
Description
bool is_executable(string $filename
)
Parameters
-
filename
-
Path to the file.
Return Values
Returns true
if the filename exists and is executable, or false
on
error. On POSIX systems, a file is executable if the executable bit of the
file permissions is set. For Windows, see the note below.
Errors/Exceptions
Upon failure, an E_WARNING
is emitted.
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';
}
?>
Notes
Note: The results of this
function are cached. See clearstatcache for
more details.
TipAs 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.
Note:
On Windows, a file is considered executable, if it is a properly executable
file as reported by the Win API GetBinaryType()
; for BC
reasons, files with a .bat or .cmd
extension are also considered executable. Prior to PHP 7.4.0, any non-empty
file with a .exe or .com extension
was considered executable. Note that PATHEXT is irrelevant
for is_executable.