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run code in 200+ php & hhvm versions
Bugs & Features
<?php function serializeContext($default, $optional) { return "'" . implode("', '", array_merge( $default, $optional )) . "'" ; } $a = array('test1', 'test2'); $b = array('test3');
based on hIOVc
Output for 4.3.0 - 7.2.0