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run code in 150+ php & hhvm versions
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<?php $url = "foo.lol?a=b&f=g?c=d"; var_dump(preg_split("/?/", $url)); ?>
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_split(): Compilation failed: nothing to repeat at offset 0 in /in/VBrcm on line 3 bool(false)
Output for 4.3.0 - 4.3.10, hhvm-3.10.0 - 3.12.0
Warning: Compilation failed: nothing to repeat at offset 0 in /in/VBrcm on line 3 bool(false)