PHP Operator

PHP Operator is used to perform operations on variable and values. Following are the types of Operator: PHP Arithmetic Operator PHP Arithmetic operator is used for arithmetical operations, such as addition, subtraction, multiplication etc.

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

PHP Assignment Operators PHP assignment operator is used to write a value to a variable.

Operator	Description	Example
x=y , x=y	The yvalueassign to X value	$x=$y
x+=y , x=x+y	Addition	$x=$y+$z
x-=y , x=x-y	Subtraction	$x=$y-$z
x*=y , x=x*y	Multiplication	$x=$y+$z
x/=y , x=x/y	Division	$x=$y/$z
x%=y, x=x%y	Modulus	$x=$y%$z

PHP Comparison Operators PHP comparison operator are used to compare two values (number and string)

Operator	Name	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

PHP Increment / Decrement Operators PHP increment and decrement operator is used to increment and decrement a variable’s value.

Operator	Name	Description
++$x	Pre-increment	It Increments $x by 1, then returns $x.
$x++	Post-increment	It returns $x, then increments $x by 1.
--$x	Pre-decrement	It decrements $x by 1, then returns $x.
$x--	Post-decrement	It returns $x, then decrements $x by one.

PHP Logical Operators The PHP Operators are used to merge two or more conditional statements.

Operator	Name	Result
and	And	True if both $x and $y are true.
or	Or	True if either $x or $y is true.
xor	Xor	True if either $x or $y is true, but not both.
&&	And	True if both $x and $y are true.
||	Or	True if either $x or $y is true.
!	Not	True if $x is not true.

PHP String Operators PHP string operators are used for string concatenation. Following are the String Operators

Operator	Name	Example
.	Concatenation	$txt1 . $txt2
.=	Concatenation assignment	$txt1 .= $txt2

PHP Array Operators PHP array operator is used to compare arrays.

Operator	Name	Example	Result
+	Union	$x + $y	It is union of $x and $y.
==	Equality	$x == $y	It returns true if $x and $y have the same key/value.
===	Identity	$x === $y	It returns true if $x and $y have the same key/value pairs in the same order and of the same types.
!=	Inequality	$x != $y	It returns true if $x is not equal to $y.
<>	Inequality	$x <> $y	It returns true if $x is not equal to $y.
!==	Non-identity	$x !== $y	It returns true if $x is not identical to $y.