php interview questions and answers

1. What are the differences between GET and POST methods in form submitting, give the case where we can use get and we can use post methods?
Answer:
On the server side, the main difference between GET and POST is where the submitted is stored. The $_GET array stores data submitted by the GET method. The $_POST array stores data submitted by the POST method.
On the browser side, the difference is that data submitted by the GET method will be displayed in the browser's address field. Data submitted by the POST method will not be displayed anywhere on the browser.
GET method is mostly used for submitting a small amount and less sensitive data. POST method is mostly used for submitting a large amount or sensitive data.


2. Who is the father of php and explain the changes in php versions?

Answer:
Rasmus Lerdorf for version changes go to http://php.net/
Marco Tabini is the founder and publisher of php|architect.

3. How can we submit from without a submit button?
Answer:
We can use a simple JavaScript code linked to an event trigger of any form field.
In the JavaScript code, we can call the document.form.submit() function to submit
the form. For example:

4. How many ways we can retrieve the date in result set of mysql Using php?
Answer:
As individual objects so single record or as a set or arrays.