dynamic two-column list

twocolumnlist.php

<?php

$list = array('this','that','theother','andthis');
$evenList = (count($list)%2==0) ? true : false;

$listOne = array();
$listTwo = array();
if( $evenList ) {
   $half = count($list)/2;
   $listOne = array_slice($list,0,$half);
   $listTwo = array_slice($list,($half-1));
} else {
   $half = round((count($list)/2),PHP_ROUND_HALF_DOWN);
   // put extra element in first list
   $listOne = array_slice($list,0,($half+1));
   $listTwo = array_slice($list,($half-1));
}
$lists = array($listOne,$listTwo);

foreach($lists as $l) {
   foreach($l as $elementInList) {
      // do stuff
   }
}