Validating forms in perl ukrainian dating in dubai

13 Jan

These functions check the validity of a UK postcode specified by the supplied parameter. The definition of a valid postcode has been taken from the official specification, and from the list of BFPO codes.The functions also take into account which letters are valid in the various positions.

Here are some simple steps to make the process more secure.

See Recipes 3.5 and 3.15 for help implementing this regular expression with other programming languages. Character classes allow you to match any one out of a set of characters.

This regular expression matches three groups of digits. ( # Capture the enclosed match to backreference 1... is another character class, one that allows any one of three separators.

If the purpose of registration is to confirm that the person exists, and that they have supplied a valid email address, then as part of the registration processe you a should either email them a random password or a confirmation token rather than letting them choose their own password and use it immediately.

The code presented below would then be used for letting the user change their password.