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@ 2014-01-06T22:10:15Z

<?php
var_dump(INF === INF);
var_dump(NAN === NAN);

var_dump(INF == INF);
var_dump(NAN == NAN);

var_dump(INF - INF);
var_dump(NAN - NAN);

var_dump(INF + INF);
var_dump(NAN + NAN);

Output
Performance
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var_dump: documentation ( source)

preferences:dark modelive preview

56.16 ms | 402 KiB | 5 Q