我有一个表单，从一个调查结果显示到一个网页。目前，当用户单击"View Here"时，它会将他们带到该ID的单个条目。当它被点击，我希望它也显示额外的结果(也是来自同一数据库的结果的一部分)。
知道我是怎么做的吗?只是为了澄清一下，它应该在单击ID以挑出该条目之前不显示-否则它会一个接一个地完整显示它们。
<?php
try {
$handler = new PDO('mysql:host=localhost;dbname=***', '***', '***');
$handler->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch(PDOException $e) {
echo $e->getMessage();
die();
}
class guestquestionnaireEntry {
public $id, $date_submitted,
$entry;
public function __construct()
{
$this->entry = "
<table border='1' align='center'>
<tr class='tablelist' style='font-size: 8pt;' ><td width='5%' colspan='2'>{$this->ID}</td><td width='40%' colspan='2'><b>Date Received: </b>{$this->date_submitted}</td><td width='45%' colspan='2'>{$this->name}</td><td width='10%'><a href='"?ID={$this->ID}'">View here</a> </td></tr>
</table>
";
}
}
SELECT DATE_FORMAT(date_submitted, '%m/%d/%Y') AS date_submitted FROM guestquestionnaire
// Checks if the submitted is a number. If so, isolates the ID and adds "where" clause
$id = (!empty($_GET['ID']) && is_numeric($_GET['ID']))? " where ID = '".$_GET['ID']."'" : "";
// Add the $id to the end of the string
// A single call would be SELECT * FROM guestquestionnaire where ID = '1'
$query = $handler->query("SELECT * FROM guestquestionnaire{$id}");
$query->setFetchMode(PDO::FETCH_CLASS, 'guestquestionnaireEntry');
while($r = $query->fetch()) {
echo $r->entry, '<br>';
}
?>
我想显示的附加代码，一旦"查看这里"被点击(所以当个别条目显示):
class guestquestionnaireEntry {
public $id, $date_submitted, $choice, $expectations, $res, $res_information, $res_staff, $further_comments1,
$entry;
public function __construct()
{
$this->entry = "
<tr style='font-size: 8pt;'><td width='60%'><a href='"?ID={$this->ID}'">ID</a> </td><td width='40%' colspan='2'>{$this->date_submitted}</td></tr>
<tr style='text-align: left; font:arial;'><td><h3>Date Submitted: {$this->date_submitted}</h3></td></tr>
<table border='1' align='center'>
<tr style='background: #566890; font-size: 8pt; font-weight: bold; color: #fff;'><td colspan='3'>Prior to Arrival</td></tr>
<tr style='font-size: 8pt;'><td width='60%'>What made you choose us for your recent trip? </td><td width='40%' colspan='2'>{$this->choice}</td></tr>
<tr style='font-size: 8pt;'><td>Did we meet your expectations as advertised? If no, please state why: </td><td width='40%' colspan='2'>{$this->expectations}</td></tr>
<tr style='background: #566890; font-size: 8pt; font-weight: bold; color: #fff;'><td colspan='3'>Making your Reservation</td></tr><BR>
<tr style='font-size: 8pt;'><td>Ease of making your reservation: </td><td width='40%'>$img</td><td width='5%'>{$this->res}</td></tr><BR>
<tr style='font-size: 8pt;'><td>Hotel information offered: </td><td width='40%'>$img2</td><td width='5%'>{$this->res_information}</td></tr><BR>
<tr style='font-size: 8pt;'><td>Warmth and friendliness of staff: </td><td width='40%'>$img3</td><td width='5%'>{$this->res_staff}</td></tr><BR>
<tr style='font-size: 8pt;'><td colspan='3'>Further Comments: </BR></BR>{$this->further_comments1}</td></tr>
<BR>
</table>
<BR>
<p>Back to List</p>
";
看看这是否有效。我还没有测试过它，所以请确保保存到目前为止的所有内容的副本。它要求填写数据库凭据:
类:
<?php
interface Database
{
public static function SetConnection($host,$username,$password,$database);
}
interface Questionnaire
{
public function Display();
public function DisplaySingle();
}
class MySQLConn implements Database
{
protected static $host;
protected static $username;
protected static $password;
protected static $database;
public static $connect;
private function __construct()
{
}
public static function SetConnection($host = "***",$username = "***",$password = "***",$database = "***")
{
self::$host = $host;
self::$username = $username;
self::$password = $password;
self::$database = $database;
self::$connect = (!isset(self::$connect))? self::Initialize() : self::$connect;
}
private static function Initialize($use = 'PDO')
{
if($use == 'PDO') {
try {
$con = new PDO('mysql:host='.self::$host.';dbname='.self::$database, self::$username, self::$password);
$con->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return $con;
}
catch (PDOException $e) {
die($e->getMessage());
}
}
else
return new mysqli(self::$host, self::$username, self::$password, self::$database);
}
}
class guestquestionnaireEntry implements Questionnaire
{
public $id,
$date_submitted,
$choice,
$expectations,
$res,
$res_information,
$res_staff,
$further_comments1,
$entry;
public function __construct()
{
if(empty($_GET['focus']))
$this->entry = $this->DisplaySingle();
else
$this->entry = $this->Display();
}
public function DisplaySingle()
{
ob_start(); ?>
<table border='1' align='center'>
<tr class='tablelist' style='font-size: 8pt;' >
<td width='5%' colspan='2'><?php echo $this->ID; ?></td>
<td width='40%' colspan='2'><b>Date Received: </b><?php echo $this->date_submitted; ?></td>
<td width='45%' colspan='2'><?php echo $this->name; ?></td>
<td width='10%'><a href="?ID=<?php echo strip_tags($this->ID); ?>&focus=true">View here</a></td>
</tr>
</table>
<?php
$data = ob_get_contents();
ob_end_clean();
return $data;
}
public function Display()
{
ob_start(); ?>
<tr style='font-size: 8pt;'>
<td width='60%'><a href="?ID=<?php echo $this->ID; ?>">ID</a></td>
<td width='40%' colspan='2'><?php echo $this->date_submitted; ?></td>
</tr>
<tr style='text-align: left; font:arial;'>
<td><h3>Date Submitted: <?php echo $this->date_submitted; ?></h3></td>
</tr>
<table border='1' align='center'>
<tr style='background: #566890; font-size: 8pt; font-weight: bold; color: #fff;'>
<td colspan='3'>Prior to Arrival</td>
</tr>
<tr style='font-size: 8pt;'>
<td width='60%'>What made you choose us for your recent trip? </td>
<td width='40%' colspan='2'><?php echo $this->choice; ?></td>
</tr>
<tr style='font-size: 8pt;'>
<td>Did we meet your expectations as advertised? If no, please state why: </td>
<td width='40%' colspan='2'><?php echo $this->expectations; ?></td>
</tr>
<tr style='background: #566890; font-size: 8pt; font-weight: bold; color: #fff;'>
<td colspan='3'>Making your Reservation</td>
</tr>
<BR>
<tr style='font-size: 8pt;'>
<td>Ease of making your reservation: </td>
<td width='40%'>$img</td>
<td width='5%'><?php echo $this->res; ?></td>
</tr>
<BR>
<tr style='font-size: 8pt;'>
<td>Hotel information offered: </td>
<td width='40%'><?php echo $img2; ?></td>
<td width='5%'><?php echo $this->res_information; ?></td>
</tr>
<BR>
<tr style='font-size: 8pt;'>
<td>Warmth and friendliness of staff: </td>
<td width='40%'><?php echo $img3; ?></td>
<td width='5%'><?php echo $this->res_staff; ?></td>
</tr>
<BR>
<tr style='font-size: 8pt;'>
<td colspan='3'>Further Comments: </BR>
</BR>
<?php echo $this->further_comments1; ?></td>
</tr>
<BR>
</table>
<BR>
<p>Back to List</p>
<?php
$data = ob_get_contents();
ob_end_clean();
return $data;
}
}
?>
>
<?php
//**********************************************************************************
// Add the classes here by way of include() or just pasted at the top of the page...
//**********************************************************************************
// Start up the database connection
MySQLConn::SetConnection();
// Assign database connection
$handler = MySQLConn::$connect;
// Checks if the submitted is a number. If so, isolates the ID and adds "where" clause
$id = (!empty($_GET['ID']) && is_numeric($_GET['ID']))? " where ID = '".$_GET['ID']."'" : "";
// Add the $id to the end of the string
// A single call would be SELECT * FROM guestquestionnaire where ID = '1'
$query = $handler->query("SELECT * FROM guestquestionnaire{$id}");
$query->setFetchMode(PDO::FETCH_CLASS, 'guestquestionnaireEntry');
// Assign data
while($r = $query->fetch()) {
$setEntry[] = $r->entry;
}
// Implode with break
if(isset($setEntry))
echo implode("<br />",$setEntry);
?>