AppendIterator::valid

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

AppendIterator::valid — Checks validity of the current element

说明

Checks validity of the current element.

参数

此函数没有参数。

返回值

Returns true if the current iteration is valid, false otherwise.

参见

• AppendIterator::current() - Gets the current value
• AppendIterator::key() - Gets the current key
• AppendIterator::next() - Moves to the next element
• AppendIterator::rewind() - Rewinds the Iterator