Summary of nine mathematical functions in php

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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