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run code in 300+ PHP versions simultaneously
<?php function &f() { static $a; return $a; } f() = 42; var_dump(f());
Output for 5.3.7 - 5.3.28, 5.4.0 - 5.4.30
Fatal error: Can't use function return value in write context in /in/5orPD on line 8
Process exited with code 255.
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185.06 ms | 1395 KiB | 60 Q