spl_classes

(PHP 5, PHP 7, PHP 8)

spl_classes — 返回所有可用的SPL类

说明

spl_classes(): array

本函数返回当前所有可用的 SPL 类的数组。

参数

此函数没有参数。

返回值

Returns an array containing the currently available SPL classes.

示例

示例 #1 spl_classes() example

<?php

print_r(spl_classes());

?>

以上示例的输出类似于：

Array ( [ArrayObject] => ArrayObject [ArrayIterator] => ArrayIterator [CachingIterator] => CachingIterator [RecursiveCachingIterator] => RecursiveCachingIterator [DirectoryIterator] => DirectoryIterator [FilterIterator] => FilterIterator [LimitIterator] => LimitIterator [ParentIterator] => ParentIterator [RecursiveDirectoryIterator] => RecursiveDirectoryIterator [RecursiveIterator] => RecursiveIterator [RecursiveIteratorIterator] => RecursiveIteratorIterator [SeekableIterator] => SeekableIterator [SimpleXMLIterator] => SimpleXMLIterator )