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  • Use Of "isset" in Core PHP

    @shashank.garg
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    " isset Determine if a variable is set and is not NULL . "
    Suppose we have a HTML form and we want to know whether that form has been submitted or not we have to do a basic simple step .
    if (isset($_POST["submit"])
    {
    write something here
    }
    This means everytime if the value of form is set then it will work.

    post submit isset
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