What are the flo functions in PHP?

PHP’s flo functions include floatval, round, ceil, floor, abs, max, min, sqrt, pow and rand. 1. floatval, returns the floating point value of a variable; 2. round, rounds a floating point number to the specified number of decimal places; 3. ceil, rounds up a floating point number and returns the smallest integer not less than $val; 4. floor , round down a floating point number, return the largest integer not greater than $val, etc.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

The fio function in PHP is a set of functions used to process floating point numbers. The following are some commonly used fio functions:

1. floatval($var): Returns the floating point value of a variable. If the variable is a float, returns itself; if the variable is an integer, returns its floating-point representation; if the variable is a string, converts to a float.

2. round($val, $precision): Rounds a floating point number to the specified number of decimal places. $val is the floating point number to be rounded, $precision is the number of decimal places to retain.

3. ceil($val): Round up a floating point number and return the smallest integer that is not less than $val. For example, ceil(4.3) returns 5, and ceil(-4.3) returns -4.

4. floor($val): Rounds down a floating point number and returns the largest integer not greater than $val. For example, floor(4.9) returns 4 and floor(-4.9) returns -5.

5. abs($val): Returns the absolute value of a floating point number. For example, abs(-4.2) returns 4.2.

6. max($val1, $val2, ...): Returns the maximum value in a set of floating point numbers. For example, max(2.1, 4.2, 3.5) returns 4.2.

7. min($val1, $val2, ...): Returns the minimum value in a set of floating point numbers. For example, min(2.1, 4.2, 3.5) returns 2.1.

8. sqrt($val): Returns the square root of a floating point number. For example, sqrt(9) returns 3.

9. pow($base, $exp): Returns the specified power of a number. $base is the base and $exp is the exponent. For example, pow(2, 3) returns 8.

10. rand($min, $max): Returns a random floating point number within the specified range. $min is the minimum value and $max is the maximum value. For example, rand(1, 10) Returns a random floating point number between 1 and 10.

The above are some commonly used fio functions, which are used to handle various needs of floating point numbers. You can choose the appropriate function to handle floating point numbers according to the specific situation.

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