3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $_POST = ['checkbox_1' => 1, 'checkbox_4' => 8, 'checkbox_8' => 1]; $result = ''; for($i = 1; $i <= 10; $i++) { if(isset($_POST['checkbox_' . $i])) $result .= ' ' . $i; } echo trim($result);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1 4 8
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/1QPu6 on line 2
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/1QPu6 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/1QPu6 on line 2
Process exited with code 255.