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run code in 150+ php & hhvm versions
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<?php $val = 'asc and 1 = 1; select * from admin_user;'; $direction = 'asci'; if (preg_match('/(.*\W)(ASC|DESC)\b/si', $val, $matches)) { $val = trim($matches[1]); $direction = $matches[2]; } var_dump($val, $direction, $matches);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(40) "asc and 1 = 1; select * from admin_user;" string(4) "asci" array(0) { }