php interview question answer for fresher and experianced

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Who is the father of PHP ?
 
What is the difference between $name and $$name?
 
How can we submit a form without a submit button?
 
What is the difference between mysql_fetch_object and mysql_fetch_array?
 
What are the differences between Get and post methods.
 
How can we create a database using PHP and MySQL?
 
What are the different tables(Engine) present in MySQL,which one is default?
 
What is use of header() function in php ?
 
How can I execute a PHP script using command line?
 
What is meant by nl2br()
 
What is htaccess? Why do we use this and Where?
 
How we get IP address of client, previous reference page etc?
 
How can we encrypt and decrypt a data present in a MySQL table using MySQL?
 
How can we encrypt the username and password using PHP?
 
What are the features and advantages of object-oriented programming?
 
What is the use of friend function?
 
What are the differences between public, private, protected, static, transient, final and volatile?
 
What are the different types of errors in PHP?
 
What is the functionality of the function strstr and stristr?
 
What are the differences between PHP 3 and PHP 4 and PHP5?
 
How can we convert asp pages to PHP pages?
 
What is meant by urlencode and urldocode?
 
What is the difference between the functions unlink and unset?
 
How can we register the variables into a session?
 
How many ways can we get the value of current session id?
 
What is PHP’s mysqli Extension?