How to Create a Variable in Php and Print

How to Create a Variable in Php :-

You have Create a Variable in Php Using the "$" Sign.

Rules of Variables is Following Listout.

1. Variable Name Must be Start with a letter (a,b,c........) or underscore (_).
2. Variable Name Length is Maximum 32 Character.
3. Variable Name is the Case Sensitive.
4. Variable Name into Contain the Alpha-Numeric Character and Underscore.

Syntax of Create Variable :-

        $Variable_name=Value;

Example 1 :-

<?php

      $a=3;

      echo $a;

?>

Example 2 :-

<?php

      $a=3;

      $b=5

      echo $a+$b;

?>