3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($a) { $a[0] = array(1, 2, 3); } $foo = 1; foo(&$foo); var_dump($foo);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Parse error: syntax error, unexpected token "&" in /in/5ZqG8 on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Parse error: syntax error, unexpected '&' in /in/5ZqG8 on line 9
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call-time pass-by-reference has been removed; If you would like to pass argument by reference, modify the declaration of foo(). in /in/5ZqG8 on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: 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/5ZqG8 on line 9 Warning: Cannot use a scalar value as an array in /in/5ZqG8 on line 5 int(1)
Output for 5.2.5 - 5.2.17
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/5ZqG8 on line 9 Warning: Cannot use a scalar value as an array in /in/5ZqG8 on line 5 int(1)
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/5ZqG8 on line 9 Warning: Cannot use a scalar value as an array in /in/5ZqG8 on line 5 int(1)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 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/5ZqG8 on line 9 Warning: Cannot use a scalar value as an array in /in/5ZqG8 on line 5 int(1)

preferences:
493.46 ms | 941 KiB | 471 Q