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Detailed explanation of float to int accuracy on PHP official website
- 小云云Original
- 2018-03-28 11:46:002597browse
This article mainly shares with you the detailed explanation of float to int conversion accuracy on the PHP official website. I hope it can help you.
<?php echo (int) ( (0.1+0.7) * 10 ); // 显示 7! ?>
Due to the precision problem of floating point numbers, 0.1+0.7=0.799999..., after ×10, we get 7.9..., the mantissa is removed when converting float to int, so the result is 7.
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