iterator_apply
(PHP 5 >= 5.1.0, PHP 7)
iterator_apply — Call a function for every element in an iterator
Description
int iterator_apply ( Traversable $iterator , callable $function [, array $args ] )Calls a function for every element in an iterator.
Parameters
iterator
The class to iterate over.
function
The callback function to call on every element.
Note: The function must return
TRUEin order to continue iterating over theiterator.
args
Arguments to pass to the callback function.
Return Values
Returns the iteration count.
Examples
Example #1 iterator_apply() example
<?php
function?print_caps(Iterator?$iterator)?{
????echo?strtoupper($iterator->current())?.?"\n";
????return?TRUE;
}
$it?=?new?ArrayIterator(array("Apples",?"Bananas",?"Cherries"));
iterator_apply($it,?"print_caps",?array($it));
?>The above example will output:
APPLES
BANANAS
CHERRIESSee Also
- array_walk() - Apply a user supplied function to every member of an array
← class_uses
iterator_count →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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