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run code in 150+ php & hhvm versions
Bugs & Features
<?php $master = array(); $arrColors = array('R', 'B', 'G' ,'Y'); $arrNumbers = array('1', '2', '3', '4'); foreach($arrColors as $color) { foreach($arrNumbers as $num) { //$master += array($color => $num); //echo $color.' => '.$num; //echo "\n"; } array_push($master, $color, $num); } print_r($master);
based on BONJR
Output for 4.3.0 - 7.1.0
Array ( [0] => R [1] => 4 [2] => B [3] => 4 [4] => G [5] => 4 [6] => Y [7] => 4 )