将动态数组保存到MySQL数据库

Question

我有一个动态的form，允许用户输入信息，并且form可以多次提交，并且页面将显示所有输入的数据，这要归功于$_SESSION。该信息被发送到另一个页面，在提交后它将被保存到MySQL数据库。

我无法保存所有的信息。如果我有3组数据，它只会将最后一个写入数据库。 如何将整个数组保存到数据库？

这是显示所有的动态信息的页面：

<?php 
     $invoice_no = $_SESSION['invoice']; 
     if(isset($_SESSION['order'])) : 

      foreach($_SESSION['order'] as $sav) { 
      ?> 
      <form action="addrow.php" method="post"> 
      <label>Length</label><input type="text" name="length" value="<?php echo $sav['length']; ?>" size="2"> 
      <label>Width</label><input type="text" name="width" value="<?php echo $sav['width']; ?>" size="2"> 
      <label>Color</label><input type="text" name="color" value="<?php echo $sav['color']; ?>" size="4"> 
      <label>Quantity</label><input type="text" name="quantity" value="<?php echo $sav['quantity']; ?>" size="2"> 
      <label>Invoice Is Hidden</label><input type="hidden" name="invoice" value="<?php echo $invoice_no; ?>"> 
      <input type="hidden" name="total" value="<?php echo $sav['total']; ?>" /> 
      <input type="hidden" name="PaymentStatus" value="PAID"> 
      <br> 
      <?php } endif; ?> 
      <br><br> 
      <input type="submit" value="Submit" name="upload"> 
      </form> 

本页面保存到数据库中。我不确定如何将数组保存到数据库中，所以我用同样的代码来显示会话数据和我修改，但没有成功：

<?php 
require("addrow_info.php"); 

if(isset($_POST['upload'])) : 

$decal = array(
    'length' => $_POST['length'], 
    'width' => $_POST['width'], 
    'color' => $_POST['color'], 
    'quantity' => $_POST['quantity'], 
    'total' => $_POST['total'], 
    'invoice' => $_POST['invoice'], 
    'paymentStatus' => $_POST['PaymentStatus'], 
    'submit' => $_POST['upload'] 
); 

$_POST['order'][] = $decal; 

endif; 


if(isset($_POST['order'])) : 
foreach($_POST['order'] as $newOrder) { 


// Opens a connection to a MySQL server 
$connection=mysql_connect ("localhost", $username, $password); 
if (!$connection) { 
die('Not connected : ' . mysql_error()); 
} 

// Set the active MySQL database 
$db_selected = mysql_select_db($database, $connection); 
if (!$db_selected) { 
die ('Can\'t use db : ' . mysql_error()); 
} 

// Insert new row with user data 
$query = "INSERT INTO orders (PaymentStatus, invoice_no, length, width, color, quantity, total) VALUES ('".$newOrder['paymentStatus']."','".$newOrder['invoice']."','".$newOrder['length']."', '".$newOrder['width']."', '".$newOrder['color']."', '".$newOrder['quantity']."', '".$newOrder['total']."')"; 

$result = mysql_query($query); 

if (!$result) { 
die('Invalid query: ' . mysql_error()); 

echo "$query"; 

mysql_close(); 
} 

} endif; 

header ("location:/thankyou.php"); 

?> 

我在读有关使用serialize()功能，但我米不知道这是最好的，我想要完成。我希望每组数据在其各自的列下保存在一行中。

它应该是这样的：

Length Width Color Invoice Quantity Total PaymentStatus 
5   5  Green abc123  1   2.00  PAID <--Each row is a group 
6   6  blue  def234  2   3.00  PAID 

什么是节约的array到MySQL数据库的最佳解决方案？

Answer 1

<form action="addrow.php" method="post"><?php 
    $invoice_no = $_SESSION['invoice']; 
    if(isset($_SESSION['order'])) : 

     foreach($_SESSION['order'] as $sav) { 
     ?> 

     <label>Length</label><input type="text" name="length[]" value="<?php echo $sav['length']; ?>" size="2"> 
     <label>Width</label><input type="text" name="width[]" value="<?php echo $sav['width']; ?>" size="2"> 
     <label>Color</label><input type="text" name="color[]" value="<?php echo $sav['color']; ?>" size="4"> 
     <label>Quantity</label><input type="text" name="quantity[]" value="<?php echo $sav['quantity']; ?>" size="2"> 
     <label>Invoice Is Hidden</label><input type="hidden" name="invoice[]" value="<?php echo $invoice_no; ?>"> 
     <input type="hidden" name="total[]" value="<?php echo $sav['total']; ?>" /> 
     <input type="hidden" name="PaymentStatus" value="PAID"> 

     <br> 
     <?php } endif; ?> 
     <br><br><input type="submit" value="Submit" name="upload"> 
     </form> 

     try it and print_r($_POST), I think you can make it. 

if(isset($_POST['upload'])) { 
    print_r($_POST); 
} 

阵列（[长度] =>数组（[0] => 2 [1] => 3 [2] => 4）[宽度] =>数组（[0] => 2 [ 1] => 3 [2] => 3）

for($i=0;$i<count($_POST['length']);$i++){ 
    $order = array(
     'length'=>$_POST['length'][$i], 
     'width'=>$_POST['width'][$i]), 
     //............... 
    ); 
    $sql = "INSERT INTO orders (PaymentStatus, invoice_no, length, width, color, quantity, total) VALUES ('{$order['paymentStatus']}','{$order['invoice']}','{$order['length']}', '{$order['width']}', '{$order['color']}', '{$order['quantity']}', '{$order['total']}')"; 
    mysql_query($sql); 
}