Online PHP editor | output for PckoT

@ 2013-08-09T13:36:15Z

<?php

$sudoku = array();
$sudoku[] = array(null,3,null, null,null,null, null,null,null);
$sudoku[] = array(null,null,null, 1,9,5, null,null,null);
$sudoku[] = array(null,null,8, null,null,null, null,6,null);
$sudoku[] = array(8,null,null, null,6,null, null,null,null);
$sudoku[] = array(4,null,null, 8,null,null, null,null,1);
$sudoku[] = array(null,null,null ,null,2,null, null,null,null);
$sudoku[] = array(null,6,null, null,null,null, 2,8,null);
$sudoku[] = array(null,null,null, 4,1,9, null,null,5);
$sudoku[] = array(null,null,null, null,null,null, null,7,null);

foreach ($sudoku as $column) {
	foreach ($sudoku as $column) {
    	echo "|";
        if (!isnull($column)) {
			echo $column;
        }
    	echo "|";
	}
}

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: | Fatal error: Uncaught Error: Call to undefined function isnull() in /in/PckoT:17 Stack trace: #0 {main} thrown in /in/PckoT on line 17
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: | Fatal error: Call to undefined function isnull() in /in/PckoT on line 17
Process exited with code 255.
Output for 4.4.5 - 4.4.9: | Fatal error: Call to undefined function: isnull() in /in/PckoT on line 17
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: | Fatal error: Call to undefined function: isnull() in /in/PckoT on line 17
Process exited with code 255.
Output for 4.3.0 - 4.3.1: | Fatal error: Call to undefined function: isnull() in /in/PckoT on line 17

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