spl_classes()

(PHP 5, PHP 7)

返回所有可用的SPL类

说明

spl_classes(void): 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.

范例

spl_classes() example

<?php
print_r(spl_classes());
?>

以上例程的输出类似于：

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
)