How can the file permissions (CHMOD) of a directory created with PHP be changed to a specific value?

When creating a directory with PHP, you can set the file permissions (CHMOD) using the `chmod()` function. This function takes the directory path and the desired permission mode as parameters. To change the file permissions of a directory created with PHP to a specific value, you can simply call `chmod()` with the desired permission mode.

$directory = 'path/to/directory';
$permission = 0755; // Specify the desired permission mode here

if (!file_exists($directory)) {
    mkdir($directory);
}

chmod($directory, $permission);