- var_dump: documentation ( source)
<?php
function doit($v) {
var_dump($v);
switch ($v) {
case 0: echo "zero"; break;
case null: echo "null"; break;
case false: echo "false"; break;
case '': echo "''"; break;
}
echo "\n\n";
}
foreach (array(0, null, false, '', 'a string') as $v) doit($v);