- var_dump: documentation ( source)
- uasort: documentation ( source)
<?php
$b = 123;
$a = array('' => &$b, 'b' => 1, 'd' => 4, 'c' => 3);
uasort($a, function($a, $b) {
if ($a == $b) {
return 0;
}
return ($a < $b) ? -1 : 1;
});
var_dump($a);