What is isset and unset in php?
Write a query to find the 2nd highest salary of an employee from the employee table?
Does https prevent csrf?
What is the function of string in c?
Is salary fixed or variable cost?
What is difference between include,require,include_once and require_once()?
What is memcache?
Can I write php code in html file?
How to set a value in session? How to remove data from a session?
What is difference between python and php?
What is difference between print_r and echo in php?
Tell me how comparison of objects is done in php5?
How to close a session properly?
What is the difference between Session and Cookie?
What is action hooks and filter hooks?