is_callable

thephpleague/flysystem

Supported Versions: PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8

Verify that a value can be called as a function from the current scope.

        <?php is_callable(mixed $value, bool $syntax_only = false, string &$callable_name = null): bool
    

<?php     public static function assertFileDoesNotExist(string $filename, string $message = ''): void

    {

        if (is_callable('parent::assertFileDoesNotExist')) {


            parent::assertFileDoesNotExist($filename, $message);

        } else {

src/Local/LocalFilesystemAdapterTest.php

<?php     public static function assertDirectoryDoesNotExist(string $directory, string $message = ''): void

    {

        if (is_callable('parent::assertDirectoryDoesNotExist')) {


            parent::assertDirectoryDoesNotExist($directory, $message);

        } else {

src/Local/LocalFilesystemAdapterTest.php