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@ 2014-04-05T07:48:31Z

<?php
$a = new stdClass();
$tmp = (array) $a;
if ($a == null) {
    echo "null";
    print_r($a);
} else if (empty($a)){
    echo "empty";
        print_r($a);
}else if (!isset($a)){
    echo "set";
        print_r($a);
} 
var_dump(empty($tmp));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

69.39 ms | 402 KiB | 5 Q