PHP is an open source programming language. For the coding with PHP Language we can use NotPad++ application. Also we can display our application on the LocalHost with the using wampserver.
For the write our commands with PHP programming language we can use NotPad++ application. You can download the program from link In the Requirements section.
We can use the WampServer application for the run our applications on LocalHost that we have done in PHP codes . You can download and use the relevant program by clicking the relevant link in the requirements section.
Also we should store our applications in the "www" folder in the "wamp" folder on the "c:" drive of our computer for the run our applications through LocalHost.
Visibility and Access controls marks same points. We can use public-private-protected commands with those controls in the PHP programming language.
Also we are using public command for the access veriable from the outside the function in the PHP programming language.
We can use protected command for the block accessing veriable from the outside the function in the PHP language.
Also we can use private command for the access veriables only for the defined which class in the PHP programming language.
Commands I Used
PRIVATE I used this command for the access veriables only for the defined which class
PROTECTED I used this command for the block accessing veriable from the outside the function
PUBLIC I used this command for the access veriable from the outside the function