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@ 2016-01-10T23:30:22Z

<?php
$a='apple';
$b='a';
$c='b';
$d='c';

$obj = new StdClass;
$obj->apple = 'sauce';

echo $obj->$$$$d,"\n";

var_dump("$$$$d");

echo "{$$$$d}\n";

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

49.38 ms | 402 KiB | 5 Q