Bang Dao questions

Bang Dao answers

• What is the simplest way to get a ratio in PHP of multiple numbers?
• jQuery .keyPress() - How to get value of input which triggered event?
• Use mysql_fetch_array() with foreach() instead of while()
• In php, how do I load txt file as a string?
• Replace part of an HREF attribute in a link with jQuery
• iOS keyboard height returned incorrectly on UIKeyboardWillShowNotification/
• JavaScript getting an elements class without any libraries