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神奇的PHP 让我找不着北 floatval转 intval 变小

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Release： 2016-06-23 13:58:20
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//无解了 想不通，求解$c=2700*0.7;$m=1890;var_dump($c<$m); // 两个者的值都是1890 但它却返回 trueecho intval($c);// c应该是1890的 但经过intval 它变成了 1889
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回复讨论(解决方案)

$c = 2700*0.7;printf('%.14f', $c); //1889.99999999999977
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$c的值本来就小于$m,不返回true返回什么?

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floatval intval php
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