The abs() fuction is a built-in function in PHP and is used to return the absolute (positive) value of a number. The abs() function in PHP is identical to what we call modulus in mathematics. The modulus or absolute value of a negative number is positive.
Syntax:
abs(value)
Parameter: The abs() function accepts a single parameter value which is the number whose absolute value you want to find.
Return Value: It returns the absolute value of the number passed to it as argument.
Examples:
Input : abs(6) Output : 6 Input : abs(-6) Output : 6 Input : abs(6.4) Output : 6.4 Input : abs(-6.4) Output : 6.4
Below programs illustrate the abs() function in PHP:
-
When a positive number is passed as a parameter:
<?
php
echo (abs(6);
?>
Output:
6
-
When a negative number is passed as a parameter:
<?
php
echo (abs(-6);
?>
Output:
6
-
When a positive number with decimal places is passed as a parameter:
<?
php
echo (abs(6.4);
?>
Output:
6.4
-
When a negative number with decimal places is passed as a parameter:
<?
php
echo (abs(-6.4);
?>
Output:
6.4
Reference:
http://php.net/manual/en/function.abs.php
leave a comment
0 Comments