PHP Math functions for addition, subtraction, multipication & division

Simple PHP functions to handle addition , subtraction , multiplications and divisions can be done by using built in functions.

Best way to learn is to develop some sample scripts.

Here are some of them.

Let us start with simple addition of two variables storing numbers.

$a=5;
$b=6;
$c=$a+$b;
echo $c;

Now try a subtraction.

$a=8;
$b=10;
$c=$a-$b;
echo $c;

Multiplication

$a=3;
$b=14;
$c=$a*$b;
echo $c;// output 42

Division

$a=3;
$b=14;
$c=$a/$b;
echo $c; //Output  0.21428571428571

The output of division can be formatted to required decimal places

Visitors Rating

Number:22
Average:3.27

Your Rating

kakuyaw	06-03-2015
What is the value is not given, or not been initialize? Then what if i want to display my answer in textbox? Any idea?

smo	13-03-2015
Textbox value can be connected to display variable $c echo "<input type=text name=t1 value=$c>";

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