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run code in 200+ php & hhvm versions
Bugs & Features
<?php function swap($x, $y) { $x = $x + 1; $y = $y + 2; return $x * $y; } $a = 3; $b = swap($a, $a); print "$a, $b"; $b = swap(&$a, &$a); print "$a, $b";
Output for 7.0.0 - 7.0.1
Parse error: syntax error, unexpected '&' in /in/mTsQu on line 12
Process exited with code 255.
Output for 5.4.0 - 5.6.16
Fatal error: Call-time pass-by-reference has been removed; If you would like to pass argument by reference, modify the declaration of swap(). in /in/mTsQu on line 12
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 swap(). 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/mTsQu on line 12 Deprecated: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of swap(). 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/mTsQu on line 12 3, 206, 36
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 swap(). 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/mTsQu on line 12 Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of swap(). 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/mTsQu on line 12 3, 206, 36
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 swap(). 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/mTsQu on line 12 Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of swap(). 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/mTsQu on line 12 3, 206, 36
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 swap(). 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/mTsQu on line 12 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 swap(). 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/mTsQu on line 12 3, 206, 36