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run code in 300+ PHP versions simultaneously
<?php $a = &var_dump(&$a);
Output for 5.4.0 - 5.4.8
Fatal error: Call-time pass-by-reference has been removed in /in/KQr2H on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/KQr2H on line 2 &NULL Strict Standards: Only variables should be assigned by reference in /in/KQr2H on line 2

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184.5 ms | 1386 KiB | 46 Q