php is_executable determines whether the given file name is executable instance

php is_executable function is used to determine whether a certain file can be executed. If the file exists and is executable, it returns TRUE. If an error occurs, it returns FALSE. This article introduces you to the basic syntax and usage examples of the is_executable function.

php is_executable function introduction

is_executable function is used to determine whether the given file name is executable

Syntax:

bool is_executable ( string $filename )

Determine whether the given file name is executable.

Parameters:

filename The path to the file.

Return value:

TRUE if the file exists and is executable, FALSE on error.

php is_executable function example

Use is_executable to determine whether the permissions.php file is executable. The code is as follows:

<?php
$file_name="permissions.php";
 
//Only works on Windows with PHP 5.0.0 or later
if(is_executable($file_name)) {
  echo ("The file $file_name is executable.<br />");
}
else {
  echo ("The file $file_name is not executable.<br />");
}
?>

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