Online PHP editor | output for WcbXT

<?php

$ar = Array
(
    0 => Array
        (
            'name' => "The 5th Wave",
            'releaseDate' => '2016-01-22',
            'dates' => Array
                (
                    'date' => Array
                        (
                            0 => '2016-01-27',
                            1 => '2016-01-26'
                        )
                )
        ),

    1 => Array
        (
            'name' => 'Dirty Grandpa',
            'releaseDate' => '2016-01-21',
            'dates' => Array
                (
                    'date' => Array
                        (
                            0 => '2016-01-27',
                            1 => '2016-01-26'
                        )
                )
        ),

    2 => Array
        (
            'name' => 'The Revenant',
            'releaseDate' => '2016-01-14',
            'dates' => Array
                (
                    'date' => Array
                        (
                            0 => '2016-01-27',
                            1 => '2016-01-26'
                        )

                )
        )
);


print_r($ar);

echo "================Sort=============";

        $uasort($ar, function($a, $b){
          if( end($array['dates']['date']) < $array['releaseDate'] 
              OR end($a['dates']['date']) > date("Y-m-d", strtotime('next thursday'))
          ){
             return -1;
          }
          else{
            return 0;
          }
        });
        
print_r($ar);

eol versions

based on PoWTA

Output for 7.0.0 - 7.2.0: Array ( [0] => Array ( [name] => The 5th Wave [releaseDate] => 2016-01-22 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) [1] => Array ( [name] => Dirty Grandpa [releaseDate] => 2016-01-21 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) [2] => Array ( [name] => The Revenant [releaseDate] => 2016-01-14 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) ) ================Sort============= Notice: Undefined variable: uasort in /in/WcbXT on line 54 Fatal error: Uncaught Error: Function name must be a string in /in/WcbXT:54 Stack trace: #0 {main} thrown in /in/WcbXT on line 54
Process exited with code 255.
Output for 5.5.0 - 5.6.28: Array ( [0] => Array ( [name] => The 5th Wave [releaseDate] => 2016-01-22 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) [1] => Array ( [name] => Dirty Grandpa [releaseDate] => 2016-01-21 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) [2] => Array ( [name] => The Revenant [releaseDate] => 2016-01-14 [dates] => Array ( [date] => Array ( [0] => 2016-01-27 [1] => 2016-01-26 ) ) ) ) ================Sort============= Notice: Undefined variable: uasort in /in/WcbXT on line 54 Fatal error: Function name must be a string in /in/WcbXT on line 54
Process exited with code 255.