PHP Operators

In this tutorial we will discuss the PHP operators and how they are used. There are five types of PHP operators; the assignment, arithmetic, comparison, logical and increment/decrement operators.

Assignment Operators
The assignment operators are used to assign a value to a PHP variable. For example I might want to assign the value of Diane to a variable named $MyName. There are four assignment operators.

=	This assigns a value to the variable named $no $no = 1;
+=	This assigns the value of $no +1 to the variable named $no $no += 1;
– =	This assigns the value of $no -1 to the variable named $no $no – = 1;
.=	This concatenates (adds to) two values together. In the example below I am adding the value of " Cipollo" to the $MyName variable. Remember that the value of $MyName is Diane. $MyName .= " Cipollo"; Now the value of $MyName is Diane Cipollo.

Arithmetic Operators
There are five PHP arithmetic operators. But don't panic. It's just basic math.

+	addition This adds two values together. $c = $a + $b;
–	subtraction This subtracts one value from another value. $c = $a - $b;
*	multiplication This multiplies two values. $c = $a * $b;
/	division This divides two values. $c = $a / $b;
%	modulus or remainder This gives the remainder of two values. $c = $a % $b; Let's say the value of $a is 7 and the value of $b is 5. Then the value of $c would be the remainder which is 2.

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