3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $input = array( 'hallo' => array( 'tag_name' => 'google' ), 'hallo2' => array( 'tag_name' => 'technology' ) ); echo implode(', ', $input);
based on l29KB
Output for 4.3.0 - 7.2.0
Notice: Array to string conversion in /in/ERusv on line 11 Notice: Array to string conversion in /in/ERusv on line 11 Array, Array