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@ 2014-08-12T09:11:38Z

<?php

$constant = 'NAN';
if (defined($constant) && ! is_scalar(constant($constant)) && ! is_resource(constant($constant))) {        echo "Yes, I am non-scalar and non-resource constant!\n";}

Output
Performance
VLD
References
Branches

defined: documentation ( source)
constant: documentation ( source)

preferences:dark modelive preview

36.83 ms | 402 KiB | 5 Q