For windows users,
It will return TRUE for EXE extensions. I have checked for MSI, but it returns FALSE.
(PHP 4, PHP 5, PHP 7, PHP 8)
is_executable — Tells whether the filename is executable
filenamePath to the file.
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.
Під час збоїв буде видаватись E_WARNING.
Приклад #1 is_executable() example
<?php
$file = '/home/vincent/somefile.sh';
if (is_executable($file)) {
echo $file.' is executable';
} else {
echo $file.' is not executable';
}
?>Зауваження: Рузультати цієї функції кешуються. Докладніше: clearstatcache().
Починаючи з PHP 5.0.0, ця функція також може бути використана з деякими URL-обгортками. На сторінці Підтримувані протоколи та обгортки вказано, які обгортки підтримують сімейство функцій stat().
Зауваження: 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().
For windows users,
It will return TRUE for EXE extensions. I have checked for MSI, but it returns FALSE.is_executable() does not check the PATH environment variable, so if your current working dir is /dir/ and you have /bin/ in your PATH env and the file /bin/ffmpeg exists, then you can still run shell_exec("ffmpeg"), but is_executable("ffmpeg") will return false.
if you're looking for a version of is_executable that also considers the PATH environment variable, then try this:
<?php
function is_executable_pathenv(string $filename): bool
{
if (is_executable($filename)) {
return true;
}
if ($filename !== basename($filename)) {
return false;
}
$paths = explode(PATH_SEPARATOR, getenv("PATH"));
foreach ($paths as $path) {
if (is_executable($path . DIRECTORY_SEPARATOR . $filename)) {
return true;
}
}
return false;
}This function returns the value for the process PHP is executing under.
/var/somebody/files was only executable by owner (700).
It contained world-readable files, but without execute permission, PHP could not access the directory to download the files.
is_executable() returned false.
Making the dir world-executable (701) gave access to PHP. The download worked. And is_executable() returned true.
I assume that if I added PHP to the group of the folder and gave the group executable permission, that would also work.Under windows, it seems to returns always false for directories.
I.e
<?php
$dir = __DIR__;
$result = is_executable($dir) ? 'true' : 'false';
if($result){
echo $result;
}
?>
So do NOT use this to check if a folder is transversable because it will be system dependant code.Find no mention of this, but is_executable returns result for owner permissions only (not for group or other).