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run code in 150+ php & hhvm versions
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<?php echo PHP_QUERY_RFC1738; echo is_int(PHP_QUERY_RFC1738) ? ' is int.' : ' is string?';
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1 is int.
Output for 4.3.0 - 5.3.29
Notice: Use of undefined constant PHP_QUERY_RFC1738 - assumed 'PHP_QUERY_RFC1738' in /in/4CG3h on line 3 PHP_QUERY_RFC1738 Notice: Use of undefined constant PHP_QUERY_RFC1738 - assumed 'PHP_QUERY_RFC1738' in /in/4CG3h on line 4 is string?