PHP Logical Operators - Logical Operators in PHP

PHP Logical Operators

• PHP Logical Operators are operators that allow you to compare two values and return a Boolean (true or false) based on the comparison. Examples of PHP Logical Operators include && (AND), || (OR), ! (NOT), and XOR (exclusive OR).

Operator	Name	Syntax	Operation
and	Logical AND	$a and $b	True if both the operands are true else false
or	Logical OR	$a or $b	True if either of the operands is true else false
xor	Logical XOR	$a xor $b	True if either of the operands is true and false if both are true
&&	Logical AND	$a && $b	True if both the operands are true else false
||	Logical OR	$a || $b	True if either of the operands is true else false
!	Logical NOT	!$a	True if $a is false

Sample Code

<?php
$a = 50;
$b = 30;
if ($a == 50 and $b == 30)
	echo "and Success <br>";
if ($a == 50 or $b == 20)
	echo "or Success <br>";
if ($a == 50 xor $b == 20)
	echo "xor Success <br>";
if ($a == 50 && $b == 30)
	echo "&& Success <br>";
if ($a == 50 || $b == 20)
	echo "|| Success <br>";
if (!$c)
	echo "! Success <br>";
?>

Output

and Success
or Success
xor Success
&& Success
|| Success
! Success