Validation tests using Form.php

Note: Fields accepting numerical values were set with a type of text instead of number to bypass any client-side validation for the purposes of the demonstration.

Required; must be a valid email address format Required; must be a valid url format Must contain letters or digits; no symbols Can only contain digits 0-9, no symbols, and must be <= 4 chars long Can contain a numeric value consisting of digits, negative sign, and/or decimal Must be a numeric value >= 16 Must be a numeric value <= 100 Must be a digit value between 1 and 5 (inclusive) Must be a numeric value between 1 and 5 (inclusive)