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This article brings you a summary of nine mathematical functions in PHP. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.
1. Find the maximum value max()
echo max(array(4,5,6)); //6
2. Find the minimum value min()
echo min(array(4,5,6)); //4
3. Find the square root sqrt()
echo sqrt(16); //4
4. Rounding of floating point numbers round()
Pass in two parameters
echo round(3.725, 2); //3.73, 参数(2)保留小数点后多少位,默认为0 舍入后的结果
5. Return the nth power of the number pow()
echo pow(2,3);// 8
6. Removal method and rounding floor();
echo floor(7.88888); //7 浮点数直接舍去小数部分
7. Further rounding method ceil()
echo ceil(9.111); // 10 浮点数进一取整
8. Find the absolute value abs()
$abs = abs(-9.9); //9.9数字绝对值数字
9. Random number mt_rand()
echo mt_rand(0,100);//n->随机数随机返回范围内的值
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