display an error message when inserting duplicate value

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  • krishanusasmal
    New Member
    • Jan 2013
    • 1

    #1

    display an error message when inserting duplicate value

    I am learning in PHP and HTMl. AND XAMPP. when i inserting any duplicate value. I want to display message with duplicate message or the data already exist or something like that.

    Plz. help me.
  • acoder
    Recognized Expert MVP
    • Nov 2006
    • 16032

    #2
    What have you tried so far? Please post your code (using code tags).

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