PHP: Iterator::valid - Manual

(PHP 5, PHP 7, PHP 8)

Iterator::valid — Checks if current position is valid

Description

public function Iterator::valid(): bool

Parameters

This function has no parameters.

Return Values

The return value will be casted to bool and then evaluated. Returns true on success or false on failure.

Voitcus at gmail dot com ¶

13 years ago

If your class implements also ArrayAccess interface, you could use as valid() body

function valid(){    
   return $this->offsetExists($this->position);
}

seva dot lapsha at gmail dot com ¶

16 years ago

If Iterator::valid() returns false, the foreach() loop will be terminated.