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@ 2017-01-03T14:54:25Z

<?php

$a = array(NAN=>INF,INF=>INF,INF+1=>INF);
print_r($a);
print_r($a[INF]);

Output
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print_r: documentation ( source)

preferences:dark modelive preview

55.57 ms | 402 KiB | 5 Q