Validating audio data
The field under validation must be a valid JSON string.
The field under validation must be less than the given To determine the MIME type of the uploaded file, the file's contents will be read and the framework will attempt to guess the MIME type, which may be different from the client provided MIME type.
Again, notice that we did not have to explicitly bind the error messages to the view in our function under the hood, ships with Laravel and is Laravel's pre-5.8 behavior.
The field under validation must end with one of the given values.
However, if the user only changes the name field and not the e-mail field, you do not want a validation error to be thrown because the user is already the owner of the e-mail address.
To instruct the validator to ignore the user's ID, we'll use the method.
As mentioned previously, Laravel will automatically redirect the user back to their previous location.
The field under validation must be present in the input data and not empty.
In that case you should also somehow tell the user that there’s a problem with the field. For example, if the user presses Tab, clicks on another control, presses Enter to trigger the Accept button, or presses Esc to trigger the Cancel button.
For example, you could display an error message, change the field’s background color, or at least beep to let the user know that focus did not leave the field because something is wrong. The event triggers even if the user tries to close the form.
trait which provides a convenient method to validate incoming HTTP request with a variety of powerful validation rules.
To learn about Laravel's powerful validation features, let's look at a complete example of validating a form and displaying the error messages back to the user.