PHP MySQL Brain

And Bit Operator : &
usage ( $x & $y ), Bits that are set in both $x and $y are set.

Or bit operator ( inclusive or ) : |
usage ( $x | $y ), Bits that are set in either $x or $y are set.

Xor bit operator ( exclusive or ) : ^
usage ( $x ^ $y ), Bits that are set in $x or $y but not both are set.

Not bit operator : ~
usage ( ~$x ), Bits that are set in $x are not set, and viceversa.

Shift Left bit operator : <<
usage ( $x << $y ), Shift the bits of $x $y steps to the left (each step means “multiply by two”)

Shift right bit operator : >>
usage ( $x >> $y ), Shift the bits of $x $y steps to the right (each step means “divide by two”)

Logical Operators are using for comparing between Boolean values and will return a Boolean result. Boolean values are TRUE and FALSE.

And Operator : and
Usage : ( $x and $y ), It will return TRUE if both $x and $y are TRUE, otherwise it will return FALSE.

Or Operator : or
Usage : ( $x or $y ). It will return TRUE if $x or $y is TRUE, otherwise it will return FALSE

Xor Operator : xor
Usage : ( $x xor $y ) , It will return TRUE if either $x or $y is TRUE, but both should not be TRUE. It will return FALSE if both are TRUE or FALSE.

Not Operator : !
usage ( !$x) , It will return TRUE if $x is not TRUE

And Operator : &&
Usage : ( $x && $y ), It will return TRUE if both $x and $y are TRUE, otherwise it will return FALSE.

Or Operator : ||
Usage : ( $x || $y ). It will return TRUE if $x or $y is TRUE, otherwise it will return FALSE

Here we can see that two operators are for And Operator ( and , && )
and
two operators are for Or Operator ( or, || ).
Both will do the same job.

Comparison Operators are used for compare two values.There are several types of comparison operators in PHP programming. See the details below.

Equal Operator : ==
Usage : ($x==$y) , It will return TRUE if value of $x is equal to $y, otherwise it will return FALSE.

Identical Operator : ===
It will check the value and type. Both should be same.
usage : ($x===$y), It will return TRUE if value and type of $x is same as value and type of $y, otherwise it will return FALSE.

Not Equal Operator : !=
Usage : ( $x != $y ), It will return TRUE if value of $x is not equal to value of $y, otherwise it will return FALSE.

Not Equal Operator : <>
Usage : ( $x <> $y ), It will return TRUE if value of $x is not equal to calue of $y, otherwise it will return FALSE.

Not Identical Operator : !==
Usage : ($x !== $y ), It will return TRUE if value of $x not equal to value of $y or type of $x is not same as type of $y.

Less than Operator : <
Usage ( $x < $y ), It will return TRUE if value of $x is less than the value of $y, Otherwise it will return FALSE.

Greater than Operator: >
Usage ( $x > $y ), It will return TRUE if value of $x is greater than the value of $y, Otherwise it will return FALSE.

Less than or Equal to Operator : <=
Usage ( $x <= $y ), It will return TRUE if value of $x is less than or Equal to value of $y, Otherwise it will return FALSE.

Greater than or Equal to Operator : >=
Usage ( $x >= $y ), It will return TRUE if value of $x is greater than or equal to value of $y, Otherwise it will return FALSE

These are the main comparison Operators in PHP. You should be very thorough about all these, because its usage is very much needed in our PHP script programming.

Here we can learn about the operators used for assigning values in PHP.

Operator “=”
Usage Sample program

<?php
$x = 10;
$y = $x;
?>

Operator “+=”
x +=y is same as x = x + y
Usage Sample program

<?php
$x = 10;
$y = 20;
$x += $y;
echo $x ;
?>

Output of this PHP program will be :
30

Operator “-=”
x -=y is same as x = x – y
Usage Sample program

<?php
$x = 30;
$y = 20;
$x -= $y;
echo $x ;
?>

Output of this PHP program will be :
10

Operator “*=”
x *=y is same as x = x * y
Usage Sample program

<?php
$x = 5;
$y = 6;
$x *= $y;
echo $x ;
?>

Output of this PHP program will be :
30

Operator “/=”
x /=y is same as x = x / y
Usage Sample program

<?php
$x = 10;
$y = 5;
$x /= $y;
echo $x ;
?>

Output of this PHP program will be :
2

Operator “.=”
x .=y is same as x = x . y ( Concatenation operation )
Usage Sample program

<?php
$x = "Syam";
$y = "Here";
$x .= $y;
echo $x ;
?>

Output of this PHP program will be :
Syam Here

Operator “%=”
x %=y is same as x = x % y ( Division Remainder )
Usage Sample program

<?php
$x = 10;
$y = 3;
$x %= $y;
echo $x ;
?>

Output of this PHP program will be :
1

There are several operators in PHP available for arithmetic calculations and all.

Addition Operator : +
Use : For the addition of two numbers.
Example

<?php
$a = 30;
$b = 10;
$c = $a + $b;
echo $c;
?>

Output will be ( 30 + 10 ):
40

Subtraction Operator : -
Use : Subtract one value from another value
Example

<?php
$a = 30;
$b = 10;
$c = $a - $b;
echo $c;
?>

Output will be ( 30 – 10) :
20

Multiplication Operator : *
Use: Mutiply one value with another
Example

<?php
$a = 30;
$b = 10;
$c = $a * $b;
echo $c;
?>

Output will be ( 30 * 10) :
300

Division Operator : /
Use : for the division of one value by another
Example

<?php
$a = 30;
$b = 10;
$c = $a / $b;
echo $c;
?>

Output will be ( 30 / 10) :
3

Modulus Operator : %
It will return the division remainder
Example 1:

<?php
$a = 30;
$b = 10;
$c = $a % $b;
echo $c;
?>

Output will be remainder of 30 / 10 :
0

Example 2:

<?php
$a = 5;
$b = 2;
$c = $a % $b;
echo $c;
?>

Output will be remainder of 5 / 2) :
1

Example 3:

<?php
$a = 10;
$b = 4;
$c = $a % $b;
echo $c;
?>

Output will be the remainder of 10 / 4 :
2

Increment Operator : ++
Use: Its a short code for using against + 1
Example

<?php
$a = 30;
$a++;
echo $a;
?>

Output will be ( 30 + 1 ):
31

Decrement Operator : –
Use: Its a short code for using against – 1
Example

<?php
$a = 30;
$a--;
echo $a;
?>

Output will be ( 30 – 1 ):
29

Negation Operator : will return the opposite of number
Example

<?php
$a = 30;
$b = -$a;
echo $b;
?>

Output will be :
-30