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Input validation can be used to detect unauthorized input before it is processed by the application.
trait which provides a convenient method to validate incoming HTTP request with a variety of powerful validation rules.
If the validation rules pass, your code will keep executing normally; however, if validation fails, an exception will be thrown and the proper error response will automatically be sent back to the user.
In the case of a traditional HTTP request, a redirect response will be generated, while a JSON response will be sent for AJAX requests. Again, if the validation fails, the proper response will automatically be generated.
Syntactic validation should enforce correct syntax of structured fields (e.g.
As mentioned previously, Laravel will automatically redirect the user back to their previous location.Input Validation should not be used as the primary method of preventing XSS, SQL Injection and other attacks which are covered in respective cheat sheets but can significantly contribute to reducing their impact if implemented properly.Input validation should be applied on both syntactical and semantic level.Allows you to validate contributor input against any arbitrary regular expression allowed in Java Script.Because the regular expression is embedded in an HTML attribute, the following HTML entities will need to be escaped: Requires a valid-looking URL, e.g., " This validator performs some normalization of the entered URL to make it more useful for test question creation but also submits the user's original input.