Day -3 Bhavik PHP Operators like Arithmetic Operators , Assignment Operators ,Comparison Operators , Logical Operators

Arithmetic operators

PHP features arithmetic operator

Symbol	Name	Example	Result
`+`	addition	`echo 7 + 5`	`12`
`-`	subtraction	`echo 7 - 5`	`2`
`*`	multiplication	`echo 7 * 5`	`35`
`/`	division	`echo 7 / 5`	`1.4`
`%`	modulus	`echo 7 % 5`	`2`

Comparison operators

PHP's comparison operators compare 2 values, if the comparison succee producing a Boolean result of true, or false if it failed. you are use with if...else and while loop etc.

PHP comparison operators

Symbol	Name	Usage	Result
`==`	equal to	`a == b`	`true` if `a` equals `b`, otherwise `false`
`!=`	not equal to	`a != b`	`true` if `a` does not equal `b`, otherwise `false`
`===`	identical to	`a === b`	`true` if `a` equals `b` and they are of the same type, otherwise `false`
`!==`	not identical to	`a !== b`	`true` if `a` does not equal `b` or they are not of the same type, otherwise `false`
`<`	less than	`a < b`	`true` if `a` is less than `b`, otherwise `false`
`>`	greater than	`a > b`	`true` if `a` is greater than `b`, otherwise `false`
`<=`	less than or equal to	`a <= b`	`true` if `a` is less than or equal to `b`, otherwise `false`
`>=`	greater than or equal to	`a >= b`	`true` if `a` is greater than or equal to `b`, otherwise `false`

Logical operators

PHP logical operators:

Symbol	Name	Example	Result
`&&`	and	`a && b`	`true` if `a` and `b` are `true`, otherwise `false`
`and`	and	`a and b`	`true` if `a` and `b` are `true`, otherwise `false`
`\|\|`	or	`a \|\| b`	`true` if `a` or `b` are `true`, otherwise `false`
`or`	or	`a or b`	`true` if `a` or `b` are `true`, otherwise `false`
`xor`	xor	`a xor b`	`true` if `a` or `b` â€” but not both â€” are `true`, otherwise `false`
`!`	not	`!a`	`true` if `a` is `false`; `false` if `a` is `true`

Assignment operators

$p=5;

$p+=1;

echo 'sum = '.$p;

$q=5;

$q-=1;

echo '
sub ='.$q;

$r=5;

$r*=5;

echo '
mult='.$r;

$s=5;

$s/=5;

echo '
div='.$s;

----------------------------------------------------

Output:-

sum = 6
sub =4
mult=25
div=1

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value is odd than or even than,

value is positive or negative

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1. Calculator...........

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2. Value is odd or even than....

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3. Value is positive or negative.....

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Bhavik PHP