3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(~0); function foo(&$a) {} function bar() { return 1; } function &baz() { $a = 1; return $a; } foo(bar()); // STRICT foo(baz()); // Not strict
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/5C5sR on line 8
Output for 5.1.1 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/5C5sR on line 8
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/5C5sR on line 9
Process exited with code 255.
Output for 5.0.5
Fatal error: Only variables can be passed by reference in /in/5C5sR on line 8
Process exited with code 255.
Output for 4.3.0 - 5.0.4