我的php搜索代码有问题

我不确定我的代码出了什么问题。我收到消息“页面无法正常工作”不知道为什么？我正在尝试获取“retrieve1.php”过滤器的详细信息，但每次尝试点击学生过滤器时，我都会收到一条消息，指出“页面无法正常工作”。我很感谢这里的任何帮助。我的php搜索代码有问题

<?php 
 

 
echo "<body style='background-color:#DCDCDC'>"; 
 

 
include ("account.php"); 
 
($db = mysql_connect($hostname, $username, $password)) 
 
    or die ("unable to connect to MYSQL database"); 
 
mysql_select_db($project); 
 

 

 

 
$sql= "SELECT * FROM bpi_registration LEFT JOIN 
 
bpi_schoolInfo on bpi_registration.id_school = bpi_schoolInfo.id_school"; 
 
\t  
 

 
$query=mysql_query($sql) or die(mysql_error()); 
 

 

 

 
function grade() 
 
{ 
 
\t $query= "select distinct class_name from bpi_classInfo"; 
 
\t $result=mysql_query($query) or die(mysql_error()); 
 
\t \t 
 
\t \t 
 
\t while ($value = mysql_fetch_array ($result)) 
 
\t { 
 
\t echo "<option value='" . $value['class_name'] . "'>" . $value['class_name'] . "</option>"; 
 
\t } 
 

 

 
} 
 

 

 

 
function school() 
 
{ 
 
\t $query= "select distinct school_name from bpi_schoolInfo"; 
 
\t $result=mysql_query($query)or die(mysql_error()); 
 
\t \t 
 
\t \t 
 
\t while ($value = mysql_fetch_array ($result)) 
 
\t { 
 
\t \t echo "<option value='" . $value['school_name'] . "'>" . $value['school_name'] . "</option>"; 
 
\t } 
 

 

 
} 
 

 

 

 

 
function team() 
 
{ 
 
\t $query= "select distinct team_name from bpi_teamProfile"; 
 
\t $result=mysql_query($query)or die(mysql_error()); 
 
\t \t 
 
\t \t 
 
\t while ($value = mysql_fetch_array ($result)) 
 
\t { 
 
\t \t echo "<option value='" . $value['team_name'] . "'>" . $value['team_name'] . "</option>"; 
 
\t } 
 

 

 
} 
 

 

 

 
function students() 
 
{ 
 
\t $query= "select * from bpi_registration"; 
 
\t $result=mysql_query($query)or die(mysql_error()); 
 
\t \t 
 
\t \t 
 
\t while ($value = mysql_fetch_array ($result)) 
 
\t { 
 
\t \t echo "<option value='" . $value['first_name'].' '.$value['last_name']. "'>" . $value['first_name'].' '.$value['last_name']. "</option>"; 
 
\t \t 
 
\t } 
 

 

 
} 
 

 

 
?> 
 

 

 

 
<form action="retrieve1.php" method="GET"> 
 

 
<select name="Grade"> 
 
<option value="" selected="selected">Choose Grade</option> 
 
<?php grade() ?> 
 
</select> 
 

 
<select name="School"> 
 
<option value="" selected="selected">Choose School</option> 
 
<?php school() ?> 
 
</select> 
 

 
<select name="Team"> 
 
<option value="" selected="selected">Choose Team</option> 
 
<?php team() ?> 
 
</select> 
 

 
<select name="Students"> 
 
<option value="" selected="selected">Choose Students</option> 
 
<?php students() ?> 
 
</select> 
 

 
<input type="submit" value="Find" /> 
 
</form> 
 

 

 

 
<table width="600" border="2"> 
 
<tr> 
 
<th width="91"> <div align="center">First Name </div></th> 
 
<th width="98"> <div align="center">Last Name </div></th> 
 
<th width="198"> <div align="center">Email </div></th> 
 
<th width="97"> <div align="center">City </div></th> 
 
<th width="97"> <div align="center">State </div></th> 
 
<th width="59"> <div align="center">Country </div></th> 
 
<th width="59"> <div align="center">View </div></th> 
 

 

 
<tr> 
 

 
<?php 
 
if (isset($_GET['Students'])) 
 
{ 
 
while ($row=mysql_fetch_array($query)) 
 
{ 
 

 

 
    echo $row['email']; 
 
    echo $row['address_city']; 
 
    echo $row['address_state']; 
 
    echo $row['address_country']; 
 
    
 

 
    } 
 

 

 

 

 
} 
 

 

 
?>

来源

2016-03-27 jon doe

你有这个自己写的或只是复制粘贴它的花括号结束了吗？ – Ikari

@Saitama为什么这个奇怪的问题？为了回答你的问题 - 我正在观看youtube上的视频并遵循代码的大部分内容。这里没有粘贴复制品。一切都是自学的 –

你的代码布局很糟糕，请尝试使用一些标签？您还没有关闭您的标签，只是打开另一个标签。考虑使用IDE或类似崇高的文字 –

您在选择写一个错误的代码。使用下面的一个。

<form action="retrieve1.php" method="GET"> 

<select name="Grade"> 
<option value="" selected="selected">Choose Grade</option> 
<?php grade() ?> 
</select> 

<select name="School"> 
<option value="" selected="selected">Choose School</option> 
<?php school() ?> 
</select> 

<select name="Team"> 
<option value="" selected="selected">Choose Team</option> 
<?php team() ?> 
</select> 

<select name="Students"> 
<option value="" selected="selected">Choose Students</option> 
<?php students() ?> 
</select> 

<input type="submit" value="Find" /> 
</form>

，你也缺少while循环

<?php 
if (isset($_GET['Students'])) 
{ 
    while ($row=mysql_fetch_array($query)) 
    { 
     echo $row['email']; 
     echo $row['address_city']; 
     echo $row['address_state']; 
     echo $row['address_country']; 
    } 
} 
?>

来源

2016-03-27 07:02:18 Ajay

它仍然不起作用 –

你能看到选择框吗？ – Ajay

是的，这解决了它 –

你缺少}

<?php 
if (isset($_GET['Students'])) 
{ 
    while ($row=mysql_fetch_array($query)) 
    { 
     echo $row['email']; 
     echo $row['address_city']; 
     echo $row['address_state']; 
     echo $row['address_country']; 
    } 
} 
?>

来源

2016-03-27 07:03:23 Thiyagesan

是的，这解决了它。 –

我的php搜索代码有问题

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