Yes, by using [man]usort/man with a callback comparison function that uses [man]strlen/man.
<?php
function strIsLonger($a, $b) {
return strlen($b) - strlen($a);
}
$strs = array("this", "is", "a", "simple", "test");
usort($strs, "strIsLonger");
print_r($strs);
?>
