3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $empty_string = ""; $value1 = $empty_string1 ?: "non-empty string"; var_dump($value1); $non_empty_string = "something"; $value2 = $empty_string2 ?: "non-empty string"; var_dump($value2);
Output for 5.3.0 - 7.1.0
Notice: Undefined variable: empty_string1 in /in/Y6Mcf on line 2 string(16) "non-empty string" Notice: Undefined variable: empty_string2 in /in/Y6Mcf on line 3 string(16) "non-empty string"
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected ':' in /in/Y6Mcf 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/Y6Mcf on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Y6Mcf on line 2
Process exited with code 255.