Thread: PHP Variables

What are the PHP Variables?

I am learning PHP. I do not understand why the variables are used in PHP? Can anyone give details me what are the PHP variables? Also if possible, give me a few example of PHP that is using the variable. Thanks in advanced.

1) You will have to follow a few rules when writing variables in PHP. I have already mentioned the names of rules that are used for variables:

• A variable name can only control alpha-numeric typeset and underscore. Like a-z, A-Z, 0-9, and _.

• A changeable name in PHP should begin with letter or an underscore "_".

• A variable name should not consist of spaces. If variable name is more than one word, it must be divided with an underscore. Like if you would like variable my number, you can write it as $my_number and in capitalization as $my_Number.