不正確的XML格式輸出

Question

下面提到的代碼能夠從數據庫中獲取數據，輸出也是XML格式，但是我想要的順序不正確。

<?php 
    $config['mysql_host'] = "localhost"; 
    $config['mysql_user'] = "market"; 
    $config['mysql_pass'] = "12345"; 
    $config['db_name'] = "marketing"; 
    $config['table_name'] = "data"; 
    $root = customers; 

    //connect to host 
    mysql_connect($config['mysql_host'],$config['mysql_user'],$config['mysql_pass']); 
    //select database 
    @mysql_select_db($config['db_name']) or die("Unable to select database"); 

    $xml   = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"; 
    $root_element = $root; 
    $xml   .= "<$root_element>"; 

    //select all items in table 
    $sql = "SELECT * FROM ".$config['table_name']; 

    $result = mysql_query($sql); 
    if (!$result) { 
     die('Invalid query: ' . mysql_error()); 
    } 

    if(mysql_num_rows($result)>0) 
    { 
     while($result_array = mysql_fetch_assoc($result)) 
     { 
      $xml .= "<".$config['table_name'].">"; 

      //loop through each key,value pair in row 
      foreach($result_array as $key => $value) 
      { 
      //$key holds the table column name 
      $xml .= "<$key>"; 

      //embed the SQL data in a CDATA element to avoid XML entity issues 
      $xml.=$value; 

      //and close the element 
      $xml .= "</$key>"; 
      } 

      $xml.="</".$config['table_name'].">"; 
     } 
    } 

    //close the root element 
    $xml .= "</$root_element>"; 

    //send the xml header to the browser 
    header ("Content-Type:text/xml"); 

    //output the XML data 
    echo $xml; 
    ?> 

電流輸出：

<customers> 
<data> 
<customer>111</customer> 
<openingbal>111</openingbal> 
<pandl>11</pandl> 
<currentbal>111</currentbal> 
<time>2015-08-28 04:07:21</time> 
</data> 
<data> 
<customer>111</customer> 
<openingbal>111</openingbal> 
<pandl>11</pandl> 
<currentbal>111</currentbal> 
<time>2015-08-28 04:07:21</time> 
</data> 
</customers> 

但我想下面其中id = "something">但上面的代碼不產生相同的結果輸出。

<Customers> 
    <Customer ID ="111"> 
    <openingbal>111</openingbal> 
    <pandl>11</pandl> 
    <currentbal>111</currentbal> 
    <time>2015-08-14 03:14:30</time> 
    </Customer> 
    <Customer Id = "111"> 
    <openingbal>111</openingbal> 
    <pandl>11</pandl> 
    <currentbal>111</currentbal> 
    <time>2015-08-14 03:14:30</time> 
    </Customer> 
</Customers> 

Answer 1

這將訣竅。

<?php 
    $config['mysql_host'] = "localhost"; 
    $config['mysql_user'] = "market"; 
    $config['mysql_pass'] = "12345"; 
    $config['db_name'] = "marketing"; 
    $config['table_name'] = "data"; 
    $config['main_key'] = "customer"; 
    $root = 'Customers'; 

    //connect to host 
    mysql_connect($config['mysql_host'],$config['mysql_user'],$config['mysql_pass']); 
    //select database 
    @mysql_select_db($config['db_name']) or die("Unable to select database"); 

    $xml   = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"; 
    $root_element = $root; 
    $xml   .= "<$root_element>"; 

    //select all items in table 
    $sql = "SELECT * FROM ".$config['table_name']; 

    $result = mysql_query($sql); 
    if (!$result) { 
     die('Invalid query: ' . mysql_error()); 
    } 

    if(mysql_num_rows($result)>0) 
    { 
     while($result_array = mysql_fetch_assoc($result)) 
     { 
      $xml .= "<".ucfirst($config['main_key']); 

      //loop through each key,value pair in row 
      foreach($result_array as $key => $value) 
      { 

      if ($key == $config['main_key']) { 
        $xml .= " ID = \"".$value."\">"; 
      }else { 
       //$key holds the table column name 
       $xml .= "<$key>"; 

       //embed the SQL data in a CDATA element to avoid XML entity issues 
       $xml.=$value; 

       //and close the element 
       $xml .= "</$key>"; 
      } 
      } 

      $xml.="</".ucfirst($config['main_key']).">"; 
     } 
    } 

    //close the root element 
    $xml .= "</$root_element>"; 

    //send the xml header to the browser 
    header ("Content-Type:text/xml"); 

    //output the XML data 
    echo $xml; 
    ?>