下拉沒有在PHP

Question

我在這裏顯示2代數據庫表的工作，即1是從chapter_subscription table.In chapter_subscription表顯示10章分配所輸入的用戶輸入用戶信息用戶的信息顯示另一個之後有

1. 章節編號字段
2. 開始日期
3. 結束日期

我的目標是創建下拉選項，結束日期，讓用戶可以從下拉列表中選擇它。但我的問題是我使用了選項標籤，當我運行它是告訴意外的loop.Please可以幫助解決這個錯誤，並讓我顯示每個顯示的結束日期下拉。因爲我是PHP的新手，請提前感謝您。 insert_dummy.php

<?php 

    include('db.php'); 




    $userName=mysql_real_escape_string($_POST['userName']); 



    $userEmail=mysql_real_escape_string($_POST['userEmail']); 
    $userPassword=mysql_real_escape_string($_POST['userPassword']); 
    $expiry_date1=mysql_real_escape_string($_POST['expiry_date']); 
    $expiry_date=date("Y-m-d" ,strtotime($expiry_date1)); 
    $end_date1=mysql_real_escape_string($_POST['end_date']); 
    $end_date=date("Y-m-d",strtotime($end_date1)); 



    $regDate = date("Y-m-d"); 



    function generateCode($characters) 
    { 
     $possible = '23456789abcdefghjkmnpqrstuvwxyz!@#$%^&*'; 
     $code = ''; 
     $i = 0; 
     while ($i < $characters) { 
      $code .= substr($possible, mt_rand(0, strlen($possible)-1), 1); 
      $i++; 
     } 
     return $code; 
    } 

    $registration_key=generateCode(10); 



    $str="insert into coeds_user(userName,userEmail,userPassword,regDate,expiry_date,registration_key) values('$userName','$userEmail','$userPassword','$regDate','$expiry_date','$registration_key')"; 


    $query=mysql_query($str); 
    $userid=mysql_insert_id(); 
    if($query) 
    { 
    $display="Success"; 
    } 
    else 
    { 
    $display= "Failed"; 
    } 
    $string="select * from coeds_user where userId=$userid"; 
    $query2=mysql_query($string); 
    $display.="<table border='1' align='center'>"; 
    $display.="<tr><th>UserName</th><th>UserEmail</th><th>UserPassword</th><th>RegDate</th><th>ExpiryDate</th><th>RegistrationKey</th><th colspan='3'>Action</th></tr>"; 
    while($result=mysql_fetch_array($query2)) 
    { 
    $display.="<tr>"; 

    $display.="<td>".$result['userName']."</td>"; 
    $display.="<td>".$result['userEmail']."</td>"; 
    $display.="<td>".$result['userPassword']."</td>"; 
    $display.="<td>".$result['regDate']."</td>"; 
    $display.="<td>".$result['expiry_date']."</td>"; 
    $display.="<td>".$result['registration_key']."</td>"; 
    $display.="<td><a id='colour' class='tooltip' title='Edit' href='user_update.php?user_Id=".$result['userId']."'><img id='image' src='./images/small.gif'/></a></td>"; 
    $display.="<td><a id='colour' class='tooltip' data-toggle='tooltip' title='Delete' href='user_delete.php?user_Id=".$result['userId']." '><img id='image' src='./images/trash.png'/></a></td>"; 



    $display.="</table>"; 
    $end_date1 = date('Y-m-d', strtotime("+1 months")); 
    $end_date2 = date('Y-m-d', strtotime("+3 months")); 
    $end_date3 = date('Y-m-d', strtotime("+6 months")); 
    $end_date4 = date('Y-m-d', strtotime("+9 months")); 
    $end_date5 = date('Y-m-d', strtotime("+12 months")); 
    $page=""; 


    $str="select chapter_no from chapter_details "; 


    $query7=mysql_query($str); 

    $count=mysql_num_rows($query7); 
    for($i=0;$i<$count;$i++) 
    { 
    $chap_lic=generateCode(50); 
    $chapter_no=mysql_result($query7,$i,'chapter_no'); 
    $start_date=date('Y-m-d'); 
    $expiry_date=mysql_real_escape_string($_POST['end_date']); 
    $end_date=date("Y-m-d" ,strtotime("+3 months")); 
    /*$end_date1=mysql_real_escape_string($_POST['end_date']); 
    $end_date=date("Y-m-d",strtotime($end_date1));*/ 
    $s="insert into chapter_subscriptions (userId,chapter_no,start_date,end_date) values($userid,$chapter_no,'$start_date','$end_date')"; 
    $end_date=date("Y-m-d" ,strtotime("+3 months")); 

    $query8=mysql_query($s); 
    } 
    $strings="select * from chapter_subscriptions where userId=$userid"; 
    $query9=mysql_query($strings); 
    $display.="<table border='1' align='center'>"; 
    $display.="<tr><th>ChapterNumber</th><th>StartDate</th><th>EndDate</th><th colspan='2'>Action</th></tr>"; 
    while($result=mysql_fetch_array($query9)) 
    { 
    $display.="<tr>"; 
    $display.="<td>".$result['chapter_no']."</td>"; 
    $display.="<td>".$result['start_date']."</td>"; 


    $display.="<tr><select>".$result['end_date']. 
    for($i=0;$i<5;$i++) 
    { 
    $display.="<td><option value=echo $end_date1;>echo $end_date1;</option></td>"; 
    $display.="<td><option value=echo $end_date2;>echo $end_date2;</option></td>"; 
    $display.="<td><option value=echo $end_date3;>echo $end_date3;</option></td>"; 
    $display.="<td><option value=echo $end_date4;>echo $end_date4;</option></td>"; 
    $display.="<td><option value=echo $end_date5;>echo $end_date5;</option></td>"; 

    } 
    $display.="</select></tr>" 
    $display.="<td><a id='colour' class='tooltip' title='Edit' href='chapter_subscription_update.php?user_Id=".$result['userId']."'><img id='image' src='./images/small.gif'/></a></td>"; 
    $display.="<td><a id='colour' class='tooltip' data-toggle='tooltip' title='Delete' href='chapter_subscription_delete.php?user_Id=".$result['userId']." '><img id='image' src='./images/trash.png'/></a></td>"; 

    $display.="</tr>"; 
    } 
    $display.="</table>"; 
    ?> 

Answer 1

瞭解如何調試代碼！檢查How to get useful error messages in PHP?以瞭解如何啓用詳細錯誤。我還建議你檢查this handy guide常見的錯誤。並使用檢查常見錯誤的IDE，或使用在線code validator。堆棧溢出不是一個獲取調試幫助的地方，請查詢What topics can I ask about here?，以獲取有關您可以在此處詢問的更多信息。

---

1）你有沒有分號（的for循環導致該錯誤之前的線）：

$display.="<tr><select>".$result['end_date']. 

這應該是這樣的：

$display.="<tr><select>".$result['end_date']; 

2 ）您有一段時間不會關閉的循環（在腳本的某處丟失}）：

while($result=mysql_fetch_array($query2)) { 

3）和...

$display.="</select></tr>" 

應該

$display.="</select></tr>";