PHP operators

I will start with you by the list of operators type :

* Assignment Operators
* Arithmetic Operators
* Comparison Operators
* String Operators
* Combination Arithmetic & Assignment Operators

1- Assignment Operators

This is done using "="
For example


now both x , and y have the value 5

2 - Arithmetic Operators


Operator English Example




the output is :


3- Comparison Operators

Operator English Example Result
== Equal To $x == $y false
!= Not Equal To $x != $y true
< Less Than $x < $y true
> Greater Than $x > $y false
<= Less Than or Equal To $x <= $y true
>= Greater Than or Equal To $x >= $y false


4. String Operators

The dot (.) Operator between two strings as we saw before . like :


the output is :



5- Combination Arithmetic & Assignment Operators


If you want to increase a variable by some value . you can do the follow :
$x=$x+1;

or using short hand :
$x+=1;

here all some examples



before i close this topic i will talk about some thing which is . how to do pre/post increment and decrement . It is more shorter for adding or subtracting 1 from a variable.

$x++ is equal to $x+=1 or $x=$x+1
$x-- is equal to $x-=1 or $x=$x-1

Is $x++ different from $++x in your code ? Yes

you specify the increment before or after the line of code is executed
Example


the output is :


i wish it is clear

thanks