我的php搜索代碼有問題

我不確定我的代碼出了什麼問題。我收到消息「頁面無法正常工作」不知道爲什麼？我正在嘗試獲取「retrieve1.php」過濾器的詳細信息，但每次嘗試點擊學生過濾器時，我都會收到一條消息，指出「頁面無法正常工作」。我很感謝這裏的任何幫助。我的php搜索代碼有問題

<?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']; 
 
    
 

 
    } 
 

 

 

 

 
} 
 

 

 
?>

來源

2016-03-27 jon doe

你有這個自己寫的或只是複製粘貼它的花括號結束了嗎？ – Ikari

@Saitama爲什麼這個奇怪的問題？爲了回答你的問題 - 我正在觀看youtube上的視頻並遵循代碼的大部分內容。這裏沒有粘貼複製品。一切都是自學的 –

你的代碼佈局很糟糕，請嘗試使用一些標籤？您還沒有關閉您的標籤，只是打開另一個標籤。考慮使用IDE或類似崇高的文字 –

您在選擇寫一個錯誤的代碼。使用下面的一個。

<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循環

<?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']; 
    } 
} 
?>

來源

2016-03-27 07:02:18 Ajay

它仍然不起作用 –

你能看到選擇框嗎？ – Ajay

是的，這解決了它 –

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']; 
    } 
} 
?>

來源

2016-03-27 07:03:23 Thiyagesan

是的，這解決了它。 –

我的php搜索代碼有問題

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