Online PHP editor | refs for s7T2o

<?php //initialization of an element of GLOBALS $GLOBALS['categories'] = array(1=>'z',2=>'x',3=>'c',4=>'v',5=>'r'); print_r($GLOBALS['categories']); //another element $GLOBALS['videos'] = array(1=>'a',2=>'b',3=>'c',4=>'d'); //some operations $videosCategories = array(1=>array(2,3,4,5),2=>array(12,13,14,15),3=>array(22,23,24,25),4=>array(32,33,34,35)); foreach($videosCategories as $videoId => $categories2) $GLOBALS['videos'][$videoId]['category'] = implode(',',$categories2); //the initial element is reqritten print_r($GLOBALS['categories']);