3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo(&$var) { $var++; } $a=5; foo(&$a); // $a is 6 here ?>
based on 3q75c
Output for 5.4.0 - 5.4.32
Fatal error: Call-time pass-by-reference has been removed in /in/dvQ35 on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/dvQ35 on line 8
Output for 5.2.7 - 5.2.17
Warning: Call-time pass-by-reference has been deprecated in /in/dvQ35 on line 8
Output for 5.2.5 - 5.2.6
Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of foo(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /in/dvQ35 on line 8
Output for 5.2.1 - 5.2.4
Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of foo(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. in /in/dvQ35 on line 8
Output for 4.3.0 - 5.2.0
Warning: Call-time pass-by-reference has been deprecated - argument passed by value; If you would like to pass it by reference, modify the declaration of foo(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file. However, future versions may not support this any longer. in /in/dvQ35 on line 8