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)
is_executable — Tells whether the filename is executable
$filename
)Tells whether the filename is executable.
filename
Path to the file.
Returns TRUE
if the filename exists and is executable, or FALSE
on
error.
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';
}
?>
При збоях, буде видаватись E_WARNING
.
Зауваження: Рузультати цієї функції кешуються. Прогляньте clearstatcache() для більш детальної інформації.
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.
For windows users,
It will return TRUE for EXE extensions. I have checked for MSI, but it returns 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.
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;
}
Find no mention of this, but is_executable returns result for owner permissions only (not for group or other).