Question

I’m having the weirdest problem right now. In order to see if a contact is already in the database I check it. For me to see I echo: “Is in database” or “is not in database”. For the user to see I return him the string with the same massage. Weird thing is, the echo is always right, but the string is always the same “Is not in database”, even when a contact is in database. For example: I add my Mum. My Mum is in database, so the echo is correct and says “Is in database”. But the string I get returned always says “Is not in database”.

Full code

<?php
    $DB_HostName = "localhost";
    $DB_Name = "db";
    $DB_User = "user";
    $DB_Pass = "pw";
    $DB_Table = "contacts";

    $con = mysql_connect($DB_HostName,$DB_User,$DB_Pass) or die (mysql_error()); 
    mysql_select_db($DB_Name,$con) or die(mysql_error()); 

    $fnumber = mysql_real_escape_string($_GET["fnumber"]);

    $result = mysql_query("SELECT * FROM $DB_Table WHERE User = '$fnumber'", $con);

    if ($result) {

        if (mysql_num_rows($result) > 0) {

            echo "This user is already in database";

            $number = mysql_real_escape_string($_GET["number"]);

            mysql_query("DELETE FROM Echo WHERE Number=('$number')");

            mysql_query("INSERT INTO Echo (Number,Answer)
            VALUES ('$number','This user is already in database.')");
        }

        else echo 
            "This user isn't in the database";

        $number = mysql_real_escape_string($_GET["number"]);

        mysql_query("DELETE FROM Echo WHERE Number=('$number')");

        mysql_query("INSERT INTO Echo (Number,Answer)
        VALUES ('$number','this user isn't in the database.')");
    }

    mysql_close($con);
?>

And before you ask: In order to not crowd my database I always delete the number and then write the entry.

Answer 1

I guess this is the right code:

if ($result) {

    if (mysql_num_rows($result) > 0) {

        echo "This user is already in database";

        $number = mysql_real_escape_string($_GET["number"]);

        mysql_query("DELETE FROM Echo WHERE Number=('$number')");

        mysql_query("INSERT INTO Echo (Number,Answer)
        VALUES ('$number','This user is already in database.')");

    } else {

            echo "This user isn't in the database";

        $number = mysql_real_escape_string($_GET["number"]);

        mysql_query("DELETE FROM Echo WHERE Number=('$number')");

        mysql_query("INSERT INTO Echo (Number,Answer)
        VALUES ('$number','this user isn't in the database.')");
    }
}