3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = array( array( '1' => 'google' ), array( '2' => 'technology' ) ); echo implode(', ', array_map(function ($entry) { return $entry['tag_name']; }, $input));
based on ltBZ0
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined index: tag_name in /in/kRcAi on line 12 Notice: Undefined index: tag_name in /in/kRcAi on line 12 ,
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/kRcAi on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/kRcAi on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/kRcAi on line 11
Process exited with code 255.