<?php // $array is passed by reference function testForeach(&$array) { $array = array('a', 'b', 'c'); foreach ($array as $key => &$val) { //produces a, b as an output in PHP 5 //produces a, b, c as an output in PHP 7 var_dump($val); if ($val == 'b') { //remove 'c' from the array unset($array[2]); } } } $array = array(); testForeach($array);
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