Online PHP editor | output for vkk41

@ 2014-11-25T15:53:16Z

<?php

$arr = array('order' => array('year' => 'desc'));
$db_order = $arr['order'];
$order_clause = " ORDER BY ";
if (!is_array($db_order)) {
    $db_order = array($db_order);
}
foreach ($db_order as $num_order => $order_column) {
    if ($num_order > 0) $order_clause .= ', ';
    if (!is_array($order_column)) {
        $order_column = array($order_column => 'ASC');
    }
    $order_key = reset(array_keys($order_column))
    $order_clause .= "$order_key $order_column[$order_key]";
}
echo $order_clause;

Output for 5.4.0 - 5.4.35: Parse error: syntax error, unexpected '$order_clause' (T_VARIABLE) in /in/vkk41 on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected T_VARIABLE in /in/vkk41 on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_VARIABLE in /in/vkk41 on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/vkk41 on line 15
Process exited with code 255.

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