3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 100; function x(&$a) { echo $a; } x(&$a);
Output for 5.4.0 - 5.4.11
Fatal error: Call-time pass-by-reference has been removed in eLbRu on line 12
Process exited with code 255.
Output for 5.3.28 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/eLbRu on line 12 100
Output for 5.3.22 - 5.3.27
Deprecated: Call-time pass-by-reference has been deprecated in /in/Uviam on line 12 100
Output for 5.3.0 - 5.3.21
Deprecated: Call-time pass-by-reference has been deprecated in eLbRu on line 12 100
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179.55 ms | 1395 KiB | 49 Q