3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $fields = [ 'email' => '', 'gender' => '', 'birthday' => '', 'name' => '', 'country_code' => '', 'city' => '', 'photo' => '', 'created_at' => '', 'project' => '', ]; echo implode(',',array_map(function($f){return ':'.$f;}, array_keys($fields)));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
:email,:gender,:birthday,:name,:country_code,:city,:photo,:created_at,:project
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/DtSD3 on line 3
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 '[' in /in/DtSD3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/DtSD3 on line 3
Process exited with code 255.