#1
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    Need a good "password create/change" validation script


    I am looking for help from anyone who may have some code snippets, examples, or ideas for building a generic password creation/modification script.

    Currently in my system a user's password expires after 90 days (dates stored in MySQL). I would like to have code to do the following edits:
    • Cannot match old password (got this one!)
    • must be between six characters and fifteen (I can do this too).
    • Must not contain spaces, tabs, or line returns (special characters)
    • must contain at least one numeral in the six digits (preg_match() maybe?)

    Those are the basic principals I want to enforce in password creation/modification.

    Thanks for any help
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