Exception parsing for int conversion of intval () in PHP

This article introduces, in PHP using Intval () for int conversion, encountered an abnormal situation, and the solution, for your reference. Test code for PHP's Intval () function: HTML code: Run Result: float (945) int (944) float (945) int (945) Explanation: 9.45 This number is what we see, but the inside of the machine is not this, but the 9.44999999999999999. So: 9.449999*100 = 944.9999. Intval the mantissa straight away, so that the intval and floor () functions are similar. This is not noticed before. Nor did I notice that the intval would be rounded down. and 1.00 There is no 1.0099999 such a, so 945*1.00 will appear a float of 945. That intval to transform nature will not appear 944 of the situation. There are some classic test questions, such as: Intval ((0.1+0.7) *10) equals 7 instead of 8. That's the truth. How about, introduced here, for PHP this intval () function, understand it.

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