3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo http_build_query(['foo' => 'bar', 'baz' => 42], null, null, PHP_QUERY_RFC3986);
Output for 5.4.0 - 5.6.23, 7.0.0 - 7.1.0
foo=barbaz=42
Output for hhvm-3.10.0 - 3.12.0
foo=bar&baz=42
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/qUTkR 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 '[', expecting ')' in /in/qUTkR on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/qUTkR on line 3
Process exited with code 255.