我有三个下拉列表，其中包含来自3个不同表的数据库中的检索值
省：
区：
村：
memebrs：
但问题是，当用户从省选择它工作正常，但当它选择省和区时，它复制与所选值相关的结果，如果用户选择省和村，结果将成为三元组
任何人都可以帮助我????我将显示三种类型的所有代码
如果有人投诉，请尽量不要打败我
//**********search by locationn***************************************//
if(isset($_POST['listbyq']))
{
//********************by governorate**************************************//
if($_POST['listbyq']=="by_gov")
{
$bygov = $_POST['governorate'];
$sql = mysql_query("SELECT user_id,first_name, last_name, birth_date, registered_date,
s.specialization_name,
g.governorate_name,
d.district_name,
v.village_name
FROM members u
INNER JOIN specialization s
ON u.specialization = s.specialization_id
INNER JOIN governorate g
ON u.governorate = g.governorate_id
INNER JOIN districts d
ON u.district = d.district_id
INNER JOIN village v
ON u.village = v.id
WHERE governorate = '$bygov'")or die(mysql_error("Error: querying the governorate"));
$num_row = mysql_num_rows($sql);
if($num_row > 0 )
{
while($row = mysql_fetch_array($sql))
{
$row_id = $row['user_id'];
$row_first_name = $row['first_name'];
$row_last_name = $row['last_name'];
$row_birthdate = $row['birth_date'];
$row_registered_date = $row['registered_date'];
$row_spec = $row['specialization_name'];
$row_gov = $row['governorate_name'];
$row_dist = $row['district_name'];
$row_village = $row['village_name'];
////***********for the upload image*************************//
$check_pic="members/$row_id/image01.jpg";
$default_pic="members/0/image01.jpg";
if(file_exists($check_pic))
{
$user_pic="<img src=\"$check_pic\"width=\"120px\"/>";
}
else
{
$user_pic="<img src=\"$default_pic\"width=\"120px\"/>";
}
$outputlist.='
<table width="100%">
<tr>
<td width="23%" rowspan="5"><div style="height:120px;overflow:hidden;"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$user_pic.'</a></div></td>
<td width="14%"><div align="right">Name:</div></td>
<td width="63%"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$row_first_name.' '.$row_last_name.'</a></td>
</tr>
<tr>
<td><div align="right">Birth date:</div></td>
<td>'.$row_birthdate.'</td>
</tr>
<tr>
<td><div align="right">Registered:</div></td>
<td>'.$row_registered_date.'</td>
</tr>
<tr>
<td><div align="right">Job:</div></td>
<td>'.$row_spec.'</td>
</tr>
<tr>
<td><div align="right">Location:</div></td>
<td>'.$row_gov.'__'.$row_dist.'__'.$row_village.'</td>
</tr>
</table>
<hr />
';
}
}
}
else
{
$errorMSG = "No member within this selected governorate";
}
if($_POST['listbyqa']=="by_dist")
{
@ $bydist = $_POST['district'];
$sql = mysql_query("SELECT user_id,first_name, last_name, birth_date, registered_date,
s.specialization_name,
g.governorate_name,
d.district_name,
v.village_name
FROM members u
INNER JOIN specialization s
ON u.specialization = s.specialization_id
INNER JOIN governorate g
ON u.governorate = g.governorate_id
INNER JOIN districts d
ON u.district = d.district_id
INNER JOIN village v
ON u.village = v.id
WHERE district = '$bydist'")or die(mysql_error("Error: querying the district"));
$num_row = mysql_num_rows($sql);
if($num_row > 0 )
{
while($row = mysql_fetch_array($sql))
{
$row_id = $row['user_id'];
$row_first_name = $row['first_name'];
$row_last_name = $row['last_name'];
$row_birthdate = $row['birth_date'];
$row_registered_date = $row['registered_date'];
$row_spec = $row['specialization_name'];
$row_gov = $row['governorate_name'];
$row_dist = $row['district_name'];
$row_village = $row['village_name'];
////***********for the upload image*************************//
$check_pic="members/$row_id/image01.jpg";
$default_pic="members/0/image01.jpg";
if(file_exists($check_pic))
{
$user_pic="<img src=\"$check_pic\"width=\"120px\"/>";
}
else
{
$user_pic="<img src=\"$default_pic\"width=\"120px\"/>";
}
$outputlist.='
<table width="100%">
<tr>
<td width="23%" rowspan="5"><div style="height:120px;overflow:hidden;"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$user_pic.'</a></div></td>
<td width="14%"><div align="right">Name:</div></td>
<td width="63%"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$row_first_name.' '.$row_last_name.'</a></td>
</tr>
<tr>
<td><div align="right">Birth date:</div></td>
<td>'.$row_birthdate.'</td>
</tr>
<tr>
<td><div align="right">Registered:</div></td>
<td>'.$row_registered_date.'</td>
</tr>
<tr>
<td><div align="right">Job:</div></td>
<td>'.$row_spec.'</td>
</tr>
<tr>
<td><div align="right">Location:</div></td>
<td>'.$row_gov.'__'.$row_dist.'__'.$row_village.'</td>
</tr>
</table>
<hr />
';
}
}
}
else
{
$errorMSG = "No member within this selected District";
}
if($_POST['listbyqb']=="by_city")
{
echo $_POST['listbyqb'];
@ $byvillage = $_POST['village'];
$sql = mysql_query("SELECT user_id,first_name, last_name, birth_date, registered_date,
s.specialization_name,
g.governorate_name,
d.district_name,
v.village_name
FROM members u
INNER JOIN specialization s
ON u.specialization = s.specialization_id
INNER JOIN governorate g
ON u.governorate = g.governorate_id
INNER JOIN districts d
ON u.district = d.district_id
INNER JOIN village v
ON u.village = v.id
WHERE village = '$byvillage'")or die(mysql_error("Error: querying the district"));
$num_row = mysql_num_rows($sql);
if($num_row > 0 )
{
while($row = mysql_fetch_array($sql))
{
$row_id = $row['user_id'];
$row_first_name = $row['first_name'];
$row_last_name = $row['last_name'];
$row_birthdate = $row['birth_date'];
$row_registered_date = $row['registered_date'];
$row_spec = $row['specialization_name'];
$row_gov = $row['governorate_name'];
$row_dist = $row['district_name'];
$row_village = $row['village_name'];
////***********for the upload image*************************//
$check_pic="members/$row_id/image01.jpg";
$default_pic="members/0/image01.jpg";
if(file_exists($check_pic))
{
$user_pic="<img src=\"$check_pic\"width=\"120px\"/>";
}
else
{
$user_pic="<img src=\"$default_pic\"width=\"120px\"/>";
}
$outputlist.='
<table width="100%">
<tr>
<td width="23%" rowspan="5"><div style="height:120px;overflow:hidden;"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$user_pic.'</a></div></td>
<td width="14%"><div align="right">Name:</div></td>
<td width="63%"><a href = "http://localhost/newadamKhoury/profile.php?user_id='.$row_id.'" target="_blank">'.$row_first_name.' '.$row_last_name.'</a></td>
</tr>
<tr>
<td><div align="right">Birth date:</div></td>
<td>'.$row_birthdate.'</td>
</tr>
<tr>
<td><div align="right">Registered:</div></td>
<td>'.$row_registered_date.'</td>
</tr>
<tr>
<td><div align="right">Job:</div></td>
<td>'.$row_spec.'</td>
</tr>
<tr>
<td><div align="right">Location:</div></td>
<td>'.$row_gov.'__'.$row_dist.'__'.$row_village.'</td>
</tr>
</table>
<hr />
';
}
}
}
else
{
$errorMSG = "No member within this selected District";
}
}
答案 0 :(得分：0)
一些值得尝试的简单事情：
回显或var_dump $ _POST结果，以确保您获得您认为正在获得的数据。这可能是导致问题的原因。您可能会获得多个
看起来凌乱的代码很可能是问题的原因。您有三个输出部分，因此您有三个可能的输出，当满足适当的IF条件时，所有输出都可以触发。尝试在每个区块中回显“在这里”，“在那里”和“无处不在”或您选择的单词 - 您很快就会看到可疑代码的位置！
更好的选择可能是将where子句更改为：
WHERE village='[villagename from post]' OR district='[districtname from post'] OR governorate='[govname from post]'
这样你只需要一个IF和一个输出。它也可以更好地扩展。
尝试使用手动插入的测试数据运行每个sql（PHP myAdmin非常方便）并查看问题是在sql还是php级别。
@ - 尽量避免它。最好以不会产生错误的方式编写代码。你把它放在一个空的索引erro？如果是这样，这可能是你的问题。检查您的HTML并查看上面的答案1.