How do I find environment variables?
we store and display scores of users in different games. In MySQL, records are stored as tuples (user-id, game-id, score). Now we need to support ranks of users, i.e., each user should be informed of his current rank in the community. The challenge is to come up with the best way to store the data in MySQL so that the requirements are efficiently met.
What are the rules to determine the “truth” of any value which is not already of the boolean type?
What are the differences between public, private, protected, static, transient, final and volatile?
What is move_uploaded_file in php?
How can post form values with out press submit button
Tell me is it possible to protect special characters in a query string?
Tell me how can we automatically escape incoming data?
How to track user logged out or not? When user is idle?
What is the use of print_r function in php?
How does php work?
How to print \ in php. Only \ with out using . or *.
How many data types are used by php?