Summary of nine kinds of mathematical functions in PHP

This article brings you a summary of the nine kinds of mathematical functions in PHP, there is a certain reference value, the need for friends can refer to, I hope to help you.

1 max () Max ()

echo Max (Array (4,5,6)); 6

2. Minimum min ()

echo min (Array (4,5,6)); 4

3. Find square root sqrt ()

echo sqrt (16); 4

4. Rounding of floating-point numbers round ()

Two parameters passed in

Echo Round (3.725, 2); 3.73, the parameter (2) retains the number of digits after the decimal point, the default is 0 rounded result

5. Return number of N-square pow ()

Echo pow (2,3);//8

6. To take the whole floor of the FA ();

echo Floor (7.88888); 7 floating-point numbers directly out of the decimal part

7. One-way rounding ceil ()

echo ceil (9.111); 10 floating point number in one rounding

8. Absolute ABS ()

$abs = ABS (-9.9); 9.9 Numeric Absolute Number

9. Random number Mt_rand ()

echo Mt_rand (0,100);//n-> random number returns the value in the range