我正试图从数据库中获取一个php页面，我是php的新手，我已经在谷歌上搜索过并阅读过了，但我就是没有得到它。我有一个链接到php的htm页面，因为我正试图根据选中的复选框和在条件框中提交的信息返回一些数据。这是我到目前为止所拥有的，我一直在处理查询，有些人试图让它发挥作用，所以如果我只能让一个发挥作用，那么我就可以让其余的来做我想做的事情。我知道我的代码可能达不到标准，但这不是我的职业，我只是一个试图让他的项目发挥作用的学生。请把我引向正确的方向。
编辑：这是我的一个学校项目；我必须使用他们服务器上的内容，在这种情况下，服务器恰好是mysql。我没有得到任何回报，没有任何错误或任何事情。当我从htm页面转到php页面时，什么都不会发生。我只是觉得，我可能不得不从运行一个简单的查询开始，只是为了调试，以确保我可以获得任何东西，然后从那里进行修改。我以前从未使用过复选框，也从未运行过查询，所以我忍不住相信这就是我的错误所在。我所有的插入和更新语句都在我的其他页面上工作，但代码用于选择语句并将其放入变量的方式让我非常困惑
我的htm页面：
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<span class="spanFormat"><form><input type="button" value="Create a New Ticket" onClick="window.location.href='listinput.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="Resolve a Ticket" onClick="window.location.href='resolution.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="Search for a Ticket" onClick="window.location.href='searchinput.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="View Documentation" onClick="window.location.href='documentation.htm'"></form></span>
<?php
DEFINE('DB_USER',);
DEFINE('DB_PASSWORD',);
DEFINE('DB_NAME',);
DEFINE('DB_HOST','localhost');
$con = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if(!$con){
die('Could not connect: '.mysql_error());
}
$db_selected = mysql_select_db(DB_NAME, $con);
if(!$db_selected){
die('can''t use'. DB_NAME . ':'.mysql_error());
}
?>
<form action="searchinput.php" method="post">
<p>
How would you like to search?<br/>
<input type="checkbox" name="formDoor[]" id="Ticket_ID" value="Ticket_ID" />By Ticket Number<br />
<input type="checkbox" name="formDoor[]" id="Last_Name" value="Last_Name" />By Last Name<br />
<input type="checkbox" name="formDoor[]" id="Station_ID" value="Station_ID" />By Station ID<br />
<input type="checkbox" name="formDoor[]" id="Date" value="Date" />By Date<br />
<input type="checkbox" name="formDoor[]" id="Description" value="Description" />By Description
</p>
<td>Criteria</td>
<td><input type=text name="Criteria" size=30> </td>
</form>
<input type=submit name="submit" value="Search">
</body>
</html>
这是我的php:
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<span class="spanFormat"><form><input type="button" value="Create a New Ticket" onClick="window.location.href='listinput.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="Resolve a Ticket" onClick="window.location.href='resolution.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="Search for a Ticket" onClick="window.location.href='searchinput.htm'"></form></span>
<span class="spanFormat"><form><input type="button" value="View Documentation" onClick="window.location.href='documentation.htm'"></form></span>
<?php
DEFINE('DB_USER',);
DEFINE('DB_PASSWORD',);
DEFINE('DB_NAME',);
DEFINE('DB_HOST','localhost');
$con = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if(!$con){
die('Could not connect: '.mysql_error());
}
$db_selected = mysql_select_db(DB_NAME, $con);
if(!$db_selected){
die('can''t use'. DB_NAME . ':'.mysql_error());
}
extract($_POST);
$Ticket_ID = ($_POST['Criteria']);
$Last_Name = ($_POST['Criteria']);
$Station_ID = ($_POST['Criteria']);
$Date = ($_POST['Criteria']);
$Description = ($_POST['Criteria']);
if(isset($_POST['$Ticket_ID']))
{$sql = "select Ticket_ID, customer.Customer_ID, First_Name, Last_Name, Phone_Num, Email, stations.Station_ID, Room_ID, Floor_ID, building.Building_ID, Location, incident_sheet.Description, Summary, assign_groups.Group_ID, assign_groups.Description, resolutions.Resolution_ID, resolutions.Description from customer,stations,resolutions,assign_groups, building, incident_sheet WHERE customer.Customer_ID=incident_sheet.Customer_ID AND stations.Station_ID = customer.Station_ID AND building.Building_ID=stations.Building_ID AND resolutions.Resolution_ID = incident_sheet.Resolution_ID AND assign_groups.Group_ID = incident_sheet.Group_ID AND customer.Customer_ID = ($_POST[Criteria]);";
$result = mysql_query($sql, $con);
while($row = mysql_fetch_array($result))
{
$Ticket_ID = $row['Ticket_ID'];
echo
}
}
if(IsChecked('formDoor[]','Last_Name'))
{ $select_query = "select I.Ticket_ID, I.Customer_ID, I.Description, I.Date, C.Station_ID, C.First_Name, C.Last_Name, C.Phone_num, C.Email, S.Building_ID, S.Floor_ID, S.Room_ID, B.Location, A.Assign_Groups, R.Resolutions;
from incident_sheet I, customer C, stations S, building B, assign_groups A, resoultions R;
where I.Customer_ID = C.Customer_ID,
and C.Station_ID = S.Station_ID,
and S.Building_ID = B.Building_ID,
and I.Group_ID = A.Group_ID,
and I.Resoultion_ID = R.Resoultion_ID,
order by Last_Name;"
}
if(IsChecked('formDoor[]','Station_ID'))
{ $select_query = "select I.Ticket_ID, I.Customer_ID, I.Description, I.Date, C.Station_ID, C.First_Name, C.Last_Name, C.Phone_num, C.Email, S.Building_ID, S.Floor_ID, S.Room_ID, B.Location, A.Assign_Groups, R.Resolutions;
from incident_sheet I, customer C, stations S, building B, assign_groups A, resoultions R;
where I.Customer_ID = C.Customer_ID,
and C.Station_ID = S.Station_ID,
and S.Building_ID = B.Building_ID,
and I.Group_ID = A.Group_ID,
and I.Resoultion_ID = R.Resoultion_ID,
order by Station_ID;"
}
if(IsChecked('formDoor[]','Date'))
{ $select_query = "select I.Ticket_ID, I.Customer_ID, I.Description, I.Date, C.Station_ID, C.First_Name, C.Last_Name, C.Phone_num, C.Email, S.Building_ID, S.Floor_ID, S.Room_ID, B.Location, A.Assign_Groups, R.Resolutions;
from incident_sheet I, customer C, stations S, building B, assign_groups A, resoultions R;
where I.Customer_ID = C.Customer_ID,
and C.Station_ID = S.Station_ID,
and S.Building_ID = B.Building_ID,
and I.Group_ID = A.Group_ID,
and I.Resoultion_ID = R.Resoultion_ID,
order by Date;"
}
if(IsChecked('formDoor[]','Description'))
{ $select_query = "select I.Ticket_ID, I.Customer_ID, I.Description, I.Date, C.Station_ID, C.First_Name, C.Last_Name, C.Phone_num, C.Email, S.Building_ID, S.Floor_ID, S.Room_ID, B.Location, A.Assign_Groups, R.Resolutions;
from incident_sheet I, customer C, stations S, building B, assign_groups A, resoultions R;
where I.Customer_ID = C.Customer_ID,
and C.Station_ID = S.Station_ID,
and S.Building_ID = B.Building_ID,
and I.Group_ID = A.Group_ID,
and I.Resoultion_ID = R.Resoultion_ID,
order by Description;"
}
?>
<h3>This is the current ticket information: </h3>
<p>
<table>
<tr>
<td>First Name:</td>
<td><?php echo ("$First_Name"); ?></td>
</tr>
<tr>
<td>Last Name:</td>
<td><?php echo "$Last_Name"; ?></td>
</tr>
<tr>
<td>Email:</td>
<td><?php echo "$Email"; ?></td>
</tr>
<tr>
<td>Phone Number:</td>
<td><?php echo "$Phone_Num"; ?></td>
</tr>
<tr>
<td>Building:</td>
<td><?php echo "$Building_ID"; ?></td>
</tr>
<tr>
<td>Floor:</td>
<td><?php echo "$Floor_ID"; ?></td>
</tr>
<tr>
<td>Room:</td>
<td><?php echo "$Room_ID"; ?></td>
</tr>
<tr>
<td>Group:</td>
<td><?php echo "$Group_ID"; ?></td>
</tr>
<tr>
<td>Description:</td>
<td><?php echo "$Description"; ?></td>
</tr>
</table>
</p>
</body>
</html>
如果能为您提供帮助，我们将不胜感激，感谢您花时间仔细研究。
您没有忘记定义这些值，对吧？没有显示调试信息的服务器不会向您显示任何信息（可能是500错误页面）
DEFINE('DB_USER',<something>);
DEFINE('DB_PASSWORD',<something>);
DEFINE('DB_NAME',<something>);
DEFINE('DB_HOST','localhost');