# Operators

An operator is a symbol that takes one or more values to yield another value. There many different types of operators including Arithmetic Operators, Comparison Operators and Logical Operators.

# Arithmetic Operators

Arithmetic operators are used to perform basic arithmetic, including addition, subtraction, multiplication and division.

Operator	Name	Example	Result
+	Addition	$a + $b	Sum of $a and $b
-	Subtraction	$a - $b	Difference of $a and $b
*	Multiplication	$a * $b	Product of $a and $b
/	Division	$a / $b	Divides $a by $b
%	Modulo	$a % $b	Remainder of $a divided by $b

# Comparison Operators

Comparison Operators are used to compare two values. When comparing values of different data types, for example a string and a number, PHP will attempt to convert the string to a number first and then do the comparison.

Operator	Name	Example	Result
==	Equal	$a == $b	TRUE if $a is equal to $b in value
===	Identical	$a === $b	TRUE if $a is equal to $b in value and data type
!=	Not Equal	$a != $b	TRUE if $a is not equal to $b in value
!==	Not Identical	$a !== $b	TRUE if $a is not equal to $b in value and data type
<	Less than	$a < $b	TRUE if $a is less than $b
>	Greater than	$a > $b	TRUE if $a is greater than $b
<=	Less than or equal to	$a <= $b	TRUE if $a is less than or equal to $b
>=	Greater than or equal to	$a >= $b	TRUE if $a is greater than equal to $b
<=>	Spaceship	$a <=> $b	Returns 0 if $a is equal to $b Returns 1 if $a is greater than $b Returns -1 if $a is less than $b

# Logical Operators

Logical Operator are used to combine and make more complex expressions.

Operator	Name	Example	Result
!	Not	!$a	TRUE if $a is not TRUE
&&	And	$a && $b	TRUE if both $a and $b are TRUE.
||	Or	$a || $b	TRUE if either $a or $b is TRUE.