Deprecated: Optional parameter $keys declared before required parameter $cms_id is implicitly treated as a required parameter in /home/www/dev/work/class/blog/CmsKey.php on line 75

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$title is deprecated in /home/www/dev/work/website/lvesu/class/controller/blog/php.php on line 28

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$outlink is deprecated in /home/www/dev/work/website/lvesu/template/blog/cms/php.manual.tpl on line 2

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$status is deprecated in /home/www/dev/work/website/lvesu/template/blog/index.head.php on line 2
PHP - Manual: FilterIterator::valid - 互联网笔记

略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: FilterIterator::valid

2025-04-27

FilterIterator::valid

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

FilterIterator::validCheck whether the current element is valid

说明

public FilterIterator::valid(): bool

Checks whether the current element is valid.

注意:

The standard implementation of this function will initially return false until the inner iterator is advanced to the first accepted element.

参数

此函数没有参数。

返回值

true if the current element is valid, otherwise false

添加备注

用户贡献的备注

此页面尚无用户贡献的备注。

官方地址:https://www.php.net/manual/en/filteriterator.valid.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3