PHP Operators

PHP has different types of operators for different operations. They are as follows:

 

1. Arithmetic Operators

Arithmetic operators are used to perform arithmetic operations.

Name	Operator	Example
Addition	+	$x+$y
Subtraction	-	$x-$y
Multiplication	*	$x*$y
Division	/	$x/$y
Modulus	%	$x%$y
Exponentiation	**	$x**$y

 

2. Assignment Operators

These operators are used to assign values to variables.

Name	Evaluated as
=	a=b
+=	a=a+b
-=	a=a-b
*=	a=a*b
/=	a=a/b
%=	a=a%b

 

3. Comparison Operators

These operators are used to compare two values.

Name	Operator	Example
Equal	==	$x==$y
Identical	===	$x===$y
Not equal	!=	$x!=$y
Not equal	<>	$x<>$y
Not Identical	!===	$x!===$y
Greater than	>	$x>$y
Less than	<	$x<$y
Greater than or equal to	>=	$x >= $y
Less than or equal to	<=	$x <= $y
Spaceship	<=>	$x <=> $y

 

4. PHP Increment/ Decrement Operators

These operators are used to increment/ decrement variable’s value. 

Name	Operator
Pre-Increment	++$x
Post-Increment	$x++
Pre-decrement	–$x
Post-decrement	$x- -

 

5. PHP Logical Operators

These are the logical operators that combine conditional statements.

Name	Operator	Example
And	and	$x and $y
Or	or	$x or $y
Xor	xor	$x xor $y
And	&&	$x && $y
Or	||	$x || $y
Not	!	!&x

 

6. PHP String Operators

PHP has these two operators designed for strings.

Name	Operator	Example
Concatenation	.	$text1 . $text2
Concatenation Assignment	.=	$text1 .= $text2

 

7. PHP Array Operators

These Operators are used to compare arrays.

Name	Operator	Example
Union	+	$x + $y
Equality	==	$x = $y
Identity	===	$x === $y
Inequality	!=	$x != $y
Inequality	<>	$x <> $y
!== Non-Identity	!==	$x !== $y

 

8. PHP Conditional Operators

These operators assign values to operands based on the outcome of a certain condition. 

Name	Operator	Example
Ternary	?:	$x = exp1 ? exp2 : exp3
Null Coalescing	??	$x = exp1 ?? exp2