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@ 2018-02-24T07:47:14Z

<?php

namespace ABC;

class DEF {}

var_dump(class_exists('DEF'));
var_dump(class_exists('ABC\DEF'));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
class_exists: documentation ( source)

preferences:dark modelive preview

27.38 ms | 402 KiB | 5 Q