PHP - Manual: AppendIterator::valid
2025-02-27
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
AppendIterator::valid — Checks validity of the current element
Checks validity of the current element.
此函数没有参数。
Returns true if the current iteration is valid, false otherwise.
true
false
官方地址:https://www.php.net/manual/en/appenditerator.valid.php