PHP Arithmetic Operators:-
Operator
|
Name
|
Example
|
Result
|
+
|
Addition
|
$x + $y
|
Sum of $x and $y
|
-
|
Subtraction
|
$x - $y
|
Difference of $x
and $y
|
*
|
Multiplication
|
$x * $y
|
Product of $x and
$y
|
/
|
Division
|
$x / $y
|
Quotient of $x and
$y
|
%
|
Modulus
|
$x % $y
|
Remainder of $x
divided by $y
|
PHP String Operators:-
Operator
|
Name
|
Example
|
Result
|
.
|
Concatenation
|
$txt1 =
"Hello"
$txt2 = $txt1 . " world!" |
Now $txt2 contains
"Hello world!"
|
PHP Increment / Decrement Operators:-
Operator
|
Name
|
Description
|
++$x
|
Pre-increment
|
Increments $x by one, then returns $x
|
$x++
|
Post-increment
|
Returns $x, then increments $x by one
|
--$x
|
Pre-decrement
|
Decrements $x by one, then returns $x
|
$x--
|
Post-decrement
|
Returns $x, then decrements $x by one
|
PHP Logical Operators:-
Operator
|
Name
|
Example
|
Result
|
&&
|
And
|
$x && $y
|
True if both $x and $y are true
|
||
|
Or
|
$x || $y
|
True if either $x or $y is true
|
!
|
Not
|
!$x
|
True if $x is not true
|
