No credit card private chat - Validating email address form
We will cover a few samples like validating e-mail address and URLs later. Here we will name it check_input and simply call this function whenever we need to validate simple input data: Note the check_input function at the bottom.What it does is takes the data passed to the function, strips unwanted characters (extra space, tab, newline) from the beginning and end of the data using the PHP trim() function, strips any quotes escaped with slashes and passes it through htmlspecialchars().The expression ", checks the validation on first Name using $invalid and $dirty. Since we have several validation checks on element, we need to display corresponding error messages e.g.
So now instead of typing the same code for each of our input fields we simply check each $_POST variable with the check_input function and that's it.
ng-class is the Angular directive used to apply class on the elements based upon the evaluated expression.
To implement it, we need to define separate The Mobile numbers can accept only 12 digits (includes country code).
Since we need to disable the Submit button when all validations are satisfied, we can achieve it using ng-disabled Angular directive as shown here: This directive accepts Boolean value, the value will be true only if the form is validated.
To start, we create a text field and bring up the properties dialog for the field.