如何从SQL表向PHP表单处理程序添加变量？

Question

Hello everybody!

When we insert html form data into an sql table, we have this variable list in the handler document:

$date = $_POST['date'];
$amount = $_POST['amount'];
$number = $_POST['number'];

And so on.

Now - I have a sawmill, where lumber with different specifications is being produced. Those specifications are stored in an sql table. I can add new ones by using a html form (for example pine boards 19mm*100mm*3m will create a 'p191003' entry in the table). This is then used as an input field name in another form, where I have a table with all the sizes and input fields to enter the amounts (number of logs produced). Every day the produced amounts are submitted to another sql table. My problem is, I need every added size to 'appear' in the variable list to be able to submit the amount produced to the database. If I did it manually, it would look like this:

$p191003 = $_POST['p191003'];
$p1910024 = $_POST['p1910024'];
$p221003 = $_POST['p221003'];
$p227024 = $_POST['p227024'];
$p22703 = $_POST['p22703'];
$p221453 = $_POST['p221453'];
$p291003 = $_POST['p291003'];

EDIT1:

This is how I add the specifications to the database:

<form action="proc_spec.php" method="post" />

<input type="radio" onclick="javascript:pCheck();" name="type" id="sp" value="Spruce/pine">Spruce/pine
<br>
<input type="radio" onclick="javascript:pCheck();" name="type" id="bir" value="Birch">Birch
<br>
<input type="radio" onclick="javascript:pCheck();" name="type" id="asp" value="Aspen">Aspen
<br><br>
<table><tr>
<td>Height (мм):</td><td>Width (мм): </td><td>Length (м): </td>
</tr><tr>
<td><input type="height" name="height" /></td><td><input type="width" name="width" /></td><td><input type="length" name="length" /></td>
</tr>
</table>



<br><br><br><br>

<input type="image" src="images/confirm.png" class="pic" alt="Confirm" />
    </form>

This is the handler:

//connect to db
$type = $_POST['type'];
$height = $_POST['height'];
$width = $_POST['width'];
$length = $_POST['length'];


$h = $height * 0.001;
$w = $width * 0.001;
$l = $length;
$v = $h * $w * $l;
$lvar = $length * 10;




 // begin the transaction
    $conn->beginTransaction();
    // our SQL statememtns


    if ($type == 'sp') {
    $conn->exec("INSERT INTO Rspecs (name, volume, type, scode) VALUES ('$h×$w×$l', '$v', '$type', 'sp$height$width$lvar')");
    }

    if ($type == 'bir') {
    $conn->exec("INSERT INTO Rspecs (name, volume, type, scode) VALUES ('$h×$w×$l', '$v', '$type', 'bir$height$width$lvar')");
    }

    if ($type == 'asp') {
    $conn->exec("INSERT INTO Rspecs (name, volume, type, scode) VALUES ('$h×$w×$l', '$v', '$type', 'asp$height$width$lvar')");
    }




 // commit the transaction
    $conn->commit();
    echo "Added to database";
    include("views/add_processing.php");
    } //disconnect

This is the form to add the produced sizes (php part):

//connect


    $query = "SELECT type, name, volume, speccode FROM Rspecs GROUP by type";
    $result = mysql_query($query);


    while( ($row = mysql_fetch_array($result)))
    {


        echo "<tr>";
        echo "<td>".$row['type']."</td>";
        echo "<td>".$row['name']."</td>";
        echo "<td>".$row['volume']."</td>";
        echo "<td><input type='amount' name='".$row['scode']."' /></td>";
        echo "</tr>";
    }



    // disconnect from the database

And this is the handler I used before (when I had to enter the sizes manually)

$p191003 = $_POST['p191003'];
$p1910024 = $_POST['p1910024'];
$p221003 = $_POST['p221003'];
$p227024 = $_POST['p227024'];
$p22703 = $_POST['p22703'];
$p221453 = $_POST['p221453'];
$p291003 = $_POST['p291003'];
$p2910024 = $_POST['p2910024'];
$p291453 = $_POST['p291453'];
$p441003 = $_POST['p441003'];
$p4410024 = $_POST['p4410024'];
$p441453 = $_POST['p441453'];
$b229808 = $_POST['b229808'];
$p2210012 = $_POST['p2210012'];
$p2210024 = $_POST['p2210024'];
$b229824 = $_POST['b229824'];
$b229820 = $_POST['b229820'];
$b229812 = $_POST['b229812'];
$b2214524 = $_POST['b2214524'];





 // begin the transaction
    $conn->beginTransaction();
    // our SQL statememtns




$conn->exec("INSERT INTO Eprocessing (date, amount, product, sort, notes, type, optype) 
    VALUES 

('$date', '$b229824', '22×98×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$b229820', '22×98×2,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$b229812', '22×98×1,2', '0-2', '$notes', '$type', 'Production'),
('$date', '$b2214524', '22×145×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p1910024', '19×100×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p291003', '29×100×3,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$p2910024', '29×100×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p291453', '29×145×3,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$p441003', '44×100×3,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$p4410024', '44×100×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p441453', '44×145×3,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$b229808', '22×98×0,8', '0-2', '$notes', '$type', 'Production'),
('$date', '$p2210012', '22×100×1,2', '0-2', '$notes', '$type', 'Production'),
('$date', '$p2210024', '22×100×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p227024', '22×70×2,4', '0-2', '$notes', '$type', 'Production'),
('$date', '$p22703', '22×70×3,0', '0-2', '$notes', '$type', 'Production'),
('$date', '$p221003', '22×100×3,0', '0-2', '$notes', '$type', 'Production')");



$conn->exec("DELETE FROM Eprocessing WHERE amount=0");




 // commit the transaction
    $conn->commit();
    echo "Added to database";
    include("views/add_processing.php");
    }
catch(PDOException $e)
    {
    // roll back the transaction if something failed
    $conn->rollback();
    echo "Error: " . $e->getMessage();
    } //disconnect

Is there a way to load the variables list from the sql database?

Is there perhaps a better solution to my situation?

I hope I made my problem clear, please tell me if not.

Thank you in advance.

Answer 1

Not sure I understand you correctly, but if you want every item in $_POST data into separate variable, you can use extract .

extract($_POST, EXTR_SKIP);

EXTR_SKIP makes sure that any of existing variables will not be overwritten. This is for security.

Then you have variables $p191003 , $p1910024 etc. $_POST array keys will be variable names.

Answer 2

you could do something like this...

$array = array();

foreach($_POST as $key => $value){
    $array[$key] = $value;
}

print_r($array); /* just to see it */

Then you could loop through the array to run your queries