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@ 2015-03-19T03:53:14Z

<?php
$a = 0.2;
$b = 0.7;
$c = $a + $b;
$d = 0.9;

var_dump($c);
var_dump($c === $d);
var_dump(round($c, 1));
var_dump(round($c, 1) === $d);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
round: documentation ( source)

preferences:dark modelive preview

39.09 ms | 402 KiB | 5 Q