3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array ( array ( 'record_num' => 18152, 'title' => 'Title of post' ), array ( 'record_num' => 18150, 'title' => 'Title of post 2' ) , array ( 'record_num' => 18134, 'title' => 'Title of post 3' ) , array ( 'record_num' => 18134, 'title' => 'Title of post 3' ) ); print '<pre>'; $result = array_map("unserialize", array_unique(array_map("serialize", $array))); print_r($result); print '</pre>'; ?>

preferences:
36.7 ms | 406 KiB | 5 Q