Form Validation
As the previous post discussed, PHP is very easy to use with web pages for the language has all the elements of a web page as a useable element. Now, going forward, forms or pages are easily handled and checked on the user end, meaning when you open a page the data input is easier to verify on the user side rather than have the input sent back to the server for checking and then returning any errors should there be any. This reduces load on the server and network having the data validated on the user end, allowing the information to be sent when the form receives all correct input. This type of handling is called client side validation where the input page verifies itself only requesting for the next step in a process when it returns true (all entries are correct). This way, the error checking and return function is on the client side reducing network and server load.
Filed under: Basic Programming by Avatar