Hai, i will give you the php script of a viral twitter applicaion, Simply, once the use is on the page he is asked to "Log in with Twiter".
After he logs in a random tweet will be posted through his account *the tweet will be posted from an array*, you can also follow someone, unfollow another user, or just delete one of his tweet AUTOMATICLY.
User's information (user's id, and the secret tokens, number of followers, lang ...) will be stored in a data.txt file. So no Database is needed
NOTE: You will get a zipped file whom contain the php script and a documention file offering a step by step guide.
NOTE 2: You will get also a list of free hosting to start with *You can find it in the documention file*
NOTE 3: Sometimes the script generates some empty lines in the data.txt file, they are just empty lines, they are not missing data. You can delete them manually, or just leave them alone, they are just empty lines.