PHP激活用戶

Question

請理解，我現在沒有數據庫訪問權限。

所以這就是我正在做的。我有一個我正在做的練習。我有一個createaccount文件，它使用表單爲用戶獲取用戶名，密碼和電子郵件。然後將這些字段寫入文本文件，併爲文件添加「非活動」狀態，然後通過電子郵件向用戶發送驗證鏈接。當用戶點擊激活鏈接時，我需要該文件來檢查它正在處​​理的用戶名，然後搜索用戶的文本文件並將狀態從非激活狀態更改爲激活狀態。

不確定如何完成此操作，我的代碼現在只是不斷告訴我文件已被銷燬。有沒有更好的辦法來做到這一點，而不是銷燬和重新創建文件？我是PHP的新手，我意識到不建議使用文本文件，沒有真正的用戶會使用這個腳本，只是我個人的做法，然後才使用表格。

讓我知道你的想法，任何幫助，非常感謝！

<?php 

    include 'sessions.php'; 

    $userid = $_GET['newUserName']; 
    $Email = $_POST['newEmail']; 
    $Users = file("../writeable/users.txt"); 
    for($i=0; $i < count($Users); $i++) { 

     $row = explode(",", $Users[$i]); 
     if ($row[$i]===$Email){ 

      $userstring="$row[0]".","."$row[1]".","."$row[2]".","."active\n"; 

      $_SESSION['active'] = TRUE; 
     } 

    } 

    //destroy the users.txt file 
    if (file_exists("../writeable/users.txt")){ 
     if(unlink("../writeable/users.txt")){ 
      echo "File destroyed, will now be recreated"; 
     } 
    } 
    else 
     echo "<p>Unable to delete this file<p>"; 

    $Userfile = fopen("../writeable/users.txt", "w+"); //recreate the file 
    $userstring = implode(",", $Users); //make the array into a string. 


    fwrite($Userfile, $userstring); //write the string userstring into userfile 
    if(!file_exists("../writeable/users.txt")){ 


     echo "<p>This file was not written<p>"; 

    } 

?> 

請溫柔，我再次新:)

Answer 1

我建議你改變你正在保存的文件中的數據的方式。序列化可以幫助你，看看JSON。

這裏是一個獨立運行的代碼，你可以把一個新文件與任何名稱（不包括電子郵件，但一旦你的想法，很容易增加。此外，remeber打開文件以查看更改）：

<?php 
// change to true to create file with example (change to false to keep changes) 
$firstRun = true; 

if(isset($_GET['key'])){ 
    $file = "users.txt"; // original data in this one 
    $file2 = "before.txt"; // saves what was before the edition (just to check) 
    // 2 files just to see the difference 

    $key = $_GET['key']; // from email link 

    if($firstRun){ 
     /* WITHOUT unique key from associative array - this might require loop through the elements 
     $data = array('username' => 'userD', 'password' => 'IamNOTencryptedX', 'active' => false, 
         'username' => 'userC', 'password' => 'IamNOTencryptedY', 'active' => false, 
         'username' => 'userB', 'password' => 'IamNOTencryptedZ', 'active' => false, 
         'username' => 'userA', 'password' => 'IamNOTencrypted1', 'active' => false, 
         'username' => 'userX', 'password' => 'IamNOTencrypted2', 'active' => false 
        ); 
     */ 
     // WITH unique key (the username in this example - could be id) - direct access 
     $users = array('userD' => array('username' => 'userD', 'password' => 'IamNOTencryptedX', 'active' => false), 
         'userC' => array('username' => 'userC', 'password' => 'IamNOTencryptedY', 'active' => false), 
         'userB' => array('username' => 'userB', 'password' => 'IamNOTencryptedZ', 'active' => false), 
         'userA' => array('username' => 'userA', 'password' => 'IamNOTencrypted1', 'active' => false), 
         'userX' => array('username' => 'userX', 'password' => 'IamNOTencrypted2', 'active' => false) 
        ); 
     file_put_contents($file, json_encode($users)); // serialize and save to file 
     $users = ""; // just to make sure, not really needed 
    } 

    if(file_exists($file)){ // better be safe than sorry 
     $fileContent = file_get_contents($file); // read it all from file 
     file_put_contents($file2, $fileContent); // create a 'backup' to file2 

     $users = json_decode($fileContent, true); // true for associative array. This will recreate the array from the beginning based on the string from file 

     if(isset($users[$key])){ // make sure it's in the file 
      // you can check if this user is already activated too 

      $users[$key]['active'] = true; // activate 
      file_put_contents($file, json_encode($users)); // save back to file. 
      echo "USER '".$users[$key]['username']."' ACTIVATED. <i>[redirection needed]</i>"; 
     }else{ 
      echo 'KEY \''.$key.'\' NOT FOUND.<br> <form> Easy fix -> KEY: <input type="text" name="key"><input type="submit" value="Activate">'; // just in case you get lost when testing, don't use this 
     } 

     echo "\n\n"; 

     // if you are going to use the first $data declaration, it's something like this 
     /* 
     foreach($users as $k => $value){ 
      if($value == $key){ 
       $users[$k]['active'] = true; // change value 
       file_put_contents($file, json_encode($users)); 
       break; 
      } 
     } 
     */ 

    }else{ 
     // FILE NOT CREATED BEFORE 
     echo "FILE CREATED JUST NOW. IS THIS FIRST RUN?"; 
     file_put_contents($file, "{}"); 
    } 
}else{ 
    echo 'MISSING KEY.<br> <form> Easy fix -> KEY: <input type="text" name="key"><input type="submit" value="Activate">';// just in case you get lost when testing, don't use this 
} 
?> 

通過此結構，您可以檢查用戶名和密碼是否匹配直接訪問該值。 要添加新的用戶，這樣的事情應該工作（不檢查，如果存在）：

$newUsername = 'still2blue'; // say this is form data 
$newPassword = 'still2blue'; 
$users[$newUsername] = array('username' => $newUsername, 'password' => $newPassword, 'active' => false); 

我很抱歉，如果任這種感覺太原因不明，但動力去了，當我鍵入其他我和一個人失去了動力。

如果你不打算改變它，你的代碼必須是這個樣子（表面上測試）：

<?php 
include 'sessions.php'; 
$fileName = "../writeable/users.txt"; 
$userid = $_GET['newUserName']; 
$Email = $_GET['newEmail']; // changed to get 
$Users = file($fileName); 
$userstring = ""; 
$found = false; 
for($i=0; $i < count($Users); $i++) { 
    $row = explode(",", $Users[$i]); // the name row here is wrong, the var $Users is equivalent to rows, this represents each 'column' 
    foreach($row as $k => $c){ 
     if($found){ // since it's unique 
      $userstring .= $row[0].",".$row[1].",".$row[2].",".$row[3].""; // the \n is already part of 'inactive' 
      break; 
     }elseif($c===$Email){ 
      $userstring .= $row[0].",".$row[1].",".$row[2].",active\n"; 
      $_SESSION['active'] = TRUE; 
      $found = true; 
      break; // no need to keep checking if it's unique 
     }elseif($k == count($row)-1){ // if you checked all the 'columns' of that row and didn't find the match, add it without active 
      $userstring .= $row[0].",".$row[1].",".$row[2].",".$row[3].""; // the \n is already part of 'inactive' 
     } 
    } 
} 

//destroy the users.txt file 
if (file_exists($fileName)){ 
    if(unlink($fileName)){ 
     echo "File destroyed, will now be recreated"; 
    } 
} 
else 
    echo "<p>Unable to delete this file<p>"; 

$Userfile = fopen($fileName, "w+"); //recreate the file 
// removed 
//$userstring = implode(",", $Users); //make the array into a string. 


fwrite($Userfile, $userstring); //write the string userstring into userfile 
if(!file_exists($fileName)){ 


    echo "<p>This file was not written<p>"; 

} 
?> 

請注意，您可能能夠實現將結果與array_search。