This is a short tutorial on how to convert negative numbers into positive numbers using PHP. In this guide, we will show you how to use PHP’s abs function.
Take a look at the following snippet.
//For the sake of this tutorial, let us say that our variable contains -6 $ourNegativeNumber = -6; //To convert this minus number into a positive number, we simply use PHP's abs function. $positiveNumber = abs($ourNegativeNumber); //Print it out onto the screen. echo $positiveNumber; //The result should be 6.
In the code above, we converted the number -6 to 6 using PHP’s abs function. The abs function will return the absolute number of a given variable.
In case you didn’t already know, an absolute value is the non-negative value of a number.
For example, the absolute “version” of -10 is 10.
Note that the abs function also works with float values and decimal numbers.
//A negative decimal number $ourNegativeDecimal = -6.24; //The abs function will also convert negative decimal numbers into positive decimals. $positiveDecimal = abs($ourNegativeDecimal); //Print out our float value onto the screen. echo $positiveDecimal; //becomes 6.24
The return type from the abs function depends on the variable that you provide it with. For example, if you provide it with a float value, then the return type will also be a float. Otherwise, it will return an integer value.