Passing form variable into Php Query

Question

I am trying to get a variable from a form on my page 1 into a query I have made on page 2 so that when the query works it will use the variable entered on page 1

Page 1 Form

<form method="post" action="testformQ.php"> <input type="text" name="testform"> <input type="submit">enter

Page 2 Query

'$software = mysql_query("SELECT software.SoftwareID, rooms.RoomID 
    FROM softwareroom 
    INNER JOIN software 
    ON software.SoftwareID=softwareroom.SoftwareID 
    INNER JOIN rooms ON rooms.RoomID=softwareroom.RoomID 
    WHERE rooms.RoomNum=$_GET[testform]");              (the where clause is where i want the variable)
        while($rec = mysql_fetch_array($software))
        {
            echo $rec['SoftwareID'] . " " . $rec['RoomID'];
        }'

So where the GET testform is within the query is where I want the form variable to go. Any help would be appreciated thanks

Answer 1

This code will work for you

$data = $_REQUEST['testform'];

$software = mysql_query("SELECT software.SoftwareID, rooms.RoomID 
    FROM softwareroom 
    INNER JOIN software 
    ON software.SoftwareID=softwareroom.SoftwareID 
    INNER JOIN rooms ON rooms.RoomID=softwareroom.RoomID 
    WHERE rooms.RoomNum='$data'");        
    while($rec = mysql_fetch_array($software))
        {
            echo $rec['SoftwareID'] . " " . $rec['RoomID'];
        }'  

Answer 2

Try this for Page02 Query..

    $servername = "servername";
    $username = "username";
    $password = "password";
    $db = "db_name";

    $query = "SELECT software.SoftwareID, rooms.RoomID FROM softwareroom INNER JOIN software ON software.SoftwareID = softwareroom.SoftwareID"
            + "INNER JOIN rooms ON rooms.RoomID = softwareroom.RoomID WHERE rooms.RoomNum = '$_POST["testform"]'";

    //Create db connection
    $connection = mysqli_connect($servername, $username, $password, $db);

    //Check connection
    if(!$connection){
        echo "Failed to connect to database ".mysqli_connect_error();
    }
    $software = mysqli_query($connection, $query);
    mysqli_close($connection);