Online PHP editor | refs for S4jVS

<?php $blue = array(1,4,7,10); $red = array(2,3,5,6,8,9); $final_array = array(); for($i=0; $i<sizeof($blue); $i++) { if($i < sizeof($blue)) { $final_array[] = $blue[$i]; } if(($i*2) < sizeof($red)) { $final_array[] = $red[$i*2]; $final_array[] = $red[($i*2)+1]; } } echo '<pre>'; print_r($final_array);