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@ 2014-07-22T09:22:02Z

<?php

class c {
    function test() { 
        $this->x();
    } 
    static function x() { 
        $bt = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
        var_dump($bt[0]['type'] == '->');
        var_dump(isset($this));
    }
};
$x = new c;
$x->test();

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
debug_backtrace: documentation ( source)

preferences:dark modelive preview

22.15 ms | 402 KiB | 5 Q