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run code in 150+ php & hhvm versions
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<?php $foo = 'http://google.com?omg=wtf'; echo preg_replace('/(http|https):\/\/(google.com/is', 'https://$2', $foo);
Output for 4.3.11 - 7.1.0
Warning: preg_replace(): Compilation failed: missing ) at offset 28 in /in/qMFQN on line 5
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: missing ) at offset 28 in /in/qMFQN on line 5