Online PHP editor | output for Ygsqs

@ 2014-04-08T08:43:27Z

<?php

$wrap = array(
    array(
        (object)array("content" => "Grüne Logistik", "date" => "2014-04-02 14:08:52"),
        (object)array("content" => "bellomondo ist klimaneutral", "date" => "2014-03-06 09:15:59"),
        ),
    array(
        (object)array("content" => "en test post title", "date" => "2014-04-07 15:31:19"),
        ),
    );

//var_dump($wrap);

//echo '---------------------';

$flattened = call_user_func_array('array_merge', $wrap);

//var_dump($sorted);

//echo '---------------------';

$sorted = usort($flattened, function($a, $b) {return strtotime($b->date) - strtotime($a->date);});

var_dump($sorted);

?>

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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: bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION in /in/Ygsqs on line 23
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_FUNCTION in /in/Ygsqs on line 23
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/Ygsqs on line 23
Process exited with code 255.

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