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run code in 150+ php & hhvm versions
Bugs & Features
<?php print urlencode("http://google.com?asdfsadfsd=asdf&asdfsdf=asdfdf"); preg_match('/[\w%]+/i', '%', $matches); var_dump($matches);
Output for 4.3.0 - 7.1.0
http%3A%2F%2Fgoogle.com%3Fasdfsadfsd%3Dasdf%26asdfsdf%3Dasdfdfarray(1) { [0]=> string(1) "%" }