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run code in 200+ php & hhvm versions
Bugs & Features
<?php class Udef { public $record_columns = array("orderby"); } $sess = array('CLX' => new Udef()); foreach ($sess as $k => $v) { var_dump($k.'|'.serialize($v)); }
based on 8NaGo
Output for 5.5.0 - 7.2.6
string(65) "CLX|O:4:"Udef":1:{s:14:"record_columns";a:1:{i:0;s:7:"orderby";}}"