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PHP Laravel 4 Basics Validation & Flash Messages Flash Messages and Errors

skyler katz
skyler katz
11,942 Points
Posted by skyler katz
skyler katz
11,942 Points

Javascript validation vs. Laravel PHP validation

Is it still important to put the data through the Laravel validator if we are using javascript client side validation? Is it better/faster with Laravel to not use Javascript validation and just use the Laravel validation items?

2 Answers

Jason Anello
PLUS
Jason Anello
Courses Plus Student 94,610 Points
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Skyler,

I'm not familiar with Laravel PHP validation but in general you would want to use both client and server side validation.

Use client validation to improve the user experience. You can let them know right away that their password isn't strong enough for example instead of making them wait for a round trip to the server.

I think client side validation is mainly there to make things nicer for honest people. It does not prevent dishonest people from doing bad things.

Use server side validation for security. You can't trust what you get from the client side. This is where you can double check that what you're getting is what you were expecting to get.

Chris Dziewa
Chris Dziewa
17,781 Points
Chris Dziewa
Chris Dziewa
17,781 Points

Very well said Jason!

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Thanks Chris! and thanks for giving an example scenario.

skyler katz
skyler katz
11,942 Points
skyler katz
skyler katz
11,942 Points

Many posts I have read suggest that client-side validation is a better user experience (especially on mobile devices).

Chris Dziewa
Chris Dziewa
17,781 Points
Chris Dziewa
Chris Dziewa
17,781 Points

Client-side validation is great for user experience. Though imagine a worst case scenario. What if there was a form for a store that had automated its shipping once a form was correctly submitted. If only client-side validation in the form of JavaScript existed, a malicious user could disable JavaScript and potentially not pay for something they order. Server side languages check information after the browser is finished with it. This is always much better for security and assures that valid and required information has been submitted.