PHP VARIABLES

                                        PHP variables

In PHP variables are used for storing the values, such as numbers,  strings or function results so that they can be used many times in a script.

Variables in PHP:

                               1. Variables are used for storing values like text strings, numbers or arrays.

                               2.When a variable is set it can be used over and over again in your script.

                               3.A variable in PHP starts with a $ sign symbol.

                              4.The correct value way of setting a variable in PHP as follows

                                              $var_name=value;

                 

               We can see the variable with a string, and a variable with a number.

                                          <?php

                                         $txt ="web designing company";

                                         $number =10;

                                          ? >

Variable naming rules:

            a. A variable name must start with a letter or an underscore "_".

            b.A variable name can only contain alpha-numeric characters and underscores.

           c. A variable name should not contain spaces.