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run code in 150+ php & hhvm versions
Bugs & Features
<?php $n = unpack('N', md5($uid, true)); return ($n[1] << 32) + $uid;
Output for 5.5.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: uid in /in/2nmpQ on line 2 Notice: Undefined variable: uid in /in/2nmpQ on line 3
Output for 5.0.0 - 5.4.45
Output for 4.4.3 - 4.4.9
<br /> <b>Warning</b>: Wrong parameter count for md5() in <b>/in/2nmpQ</b> on line <b>2</b><br /> <br /> <b>Warning</b>: unpack() [<a href='function.unpack'>function.unpack</a>]: Type N: not enough input, need 4, have 0 in <b>/in/2nmpQ</b> on line <b>2</b><br />
Output for 4.3.2 - 4.4.2
<br /> <b>Warning</b>: Wrong parameter count for md5() in <b>/in/2nmpQ</b> on line <b>2</b><br /> <br /> <b>Warning</b>: unpack(): Type N: not enough input, need 4, have 0 in <b>/in/2nmpQ</b> on line <b>2</b><br />
Output for 4.3.0 - 4.3.1
<br /> <b>Warning</b>: Wrong parameter count for md5() in <b>/in/2nmpQ</b> on line <b>2</b><br /> <br /> <b>Warning</b>: unpack() [<a href='http://www.php.net/function.unpack'>function.unpack</a>]: Type N: not enough input, need 4, have 0 in <b>/in/2nmpQ</b> on line <b>2</b><br />