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run code in 150+ php & hhvm versions
Bugs & Features
<?php //$arr = array(1,2,3,4,5,6,7,8,9,0); $arr = array(1,2,3,4,5,6,7,8); $i = 1; $s = ''; while ($i != count($arr) - 1) { $a .= "<a href='#'>{$arr[$i]}</a>\n"; $s .= !($i%4) ? "<li>$a</li>\n" : ''; $i++; } $s .= ($i%4) ? "</li>\n" : ''; echo $s;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: a in /in/Jlj6I on line 9 <li><a href='#'>2</a> <a href='#'>3</a> <a href='#'>4</a> <a href='#'>5</a> </li> </li>
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: a in /in/Jlj6I on line 9 <li><a href='#'>2</a> <a href='#'>3</a> <a href='#'>4</a> <a href='#'>5</a> </li> </li>