iterator_apply

(PHP 5 >= 5.1.0)

iterator_apply — Apply a user function to every element of an iterator

설명

int iterator_apply ( Traversable $iterator , callback $function [, array $args ] )

Calls a function for every element in an iterator.

인수

iterator: The class to walk through.
function: The callback function to call on every element.
args: Arguments to pass to the callback function.

반환값

Returns the iteration count.

참고

array_walk() - 배열의 각 원소에 대해서 특정 함수를 적용

add a note User Contributed Notes
iterator_apply

kminkler at synacor dot com
02-Jun-2009 02:02


To clarify, this method does not work exactly like array_walk(), since the current key/value of the iterator is not passed to the callback function.



This php method is equivalent to:



<?php



function iterator_apply(Traversable $iterator, $function, array $args)

{

    $count = 0;

    foreach ($iterator as $ignored)

    {

        call_user_func_array($function, $args);

        $count++;

    }



    return $count;

}



?>

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iterator_count

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Last updated: Fri, 24 Jul 2009