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run code in 150+ php & hhvm versions
Bugs & Features
<?php if(!empty($_POST)){ echo '<pre>'.print_r($_POST,true).'</pre>'; } ?> <form method="post" action=""> <select name="multiple" size="4"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> </select> </form>
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
<form method="post" action=""> <select name="multiple" size="4"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> </select> </form>
Output for hhvm-3.10.0

Process exited with code 153.