PHP abs() Function Guide

1 year ago
Ava Mitchell
1 minute

In PHP, the way to use the absolute value function is by using the abs() function.

Here is an example of using the abs() function:

$num = -5;
$absNum = abs($num);
echo $absNum; // 输出 5

In the example above, we use the abs() function to get the absolute value of $num and assign the result to the variable $absNum. Then, we use the echo statement to print the value of $absNum on the screen. The output result is 5, because the absolute value of -5 is 5.

It is important to note that the abs() function is suitable for all numeric types, including integers and float numbers.

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