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Undefined index in php.

Discussion in 'PHP' started by Roshaan.N, Apr 26, 2012.

  1. #1
    whenever i run this code i got error "undefined index" give me a solution or tell me what i have to do.

    code:

    <?php
    $a=$_POST['name'];
    $b=$_POST['password'];
    $con=mysql_connect("localhost","root","root");

    mysql_select_db("login",$con);

    $res= mysql_query("select * from login where ID ='$a' AND PASS ='$b' ");

    if(mysql_num_rows($res)=='1')

    echo "YOU ARE A MEMBER";
    else "incorrect id or password";

    ?>
    SEMrush
     
    Roshaan.N, Apr 26, 2012 IP
    SEMrush
  2. Roshaan.N

    Roshaan.N Peon

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    #2
    *
    if(mysql_num_rows($res)=='1'){
    echo "YOU ARE A MEMBER";}
    else {echo "incorrect email id or password";}
     
    Roshaan.N, Apr 26, 2012 IP
  3. Rainulf

    Rainulf Active Member

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    #3
    Which line exactly does it give the error? Can you paste here the exact error? I don't see any problem as far as I can see.
     
    Rainulf, Apr 26, 2012 IP
  4. webshore88

    webshore88 Active Member

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    #4
    Roshaan.N is right, but I guess your problem is somewhere at this line
    $res= mysql_query("select * from login where ID ='$a' AND PASS ='$b' ");
    check your DB field is same as you are mentioning in your query.
     
    webshore88, Apr 27, 2012 IP
  5. infotripro

    infotripro Member

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    #5
    check your table for an index
     
    infotripro, May 2, 2012 IP