请理解我现在没有数据库访问权限。
这就是我所做的。我在做一个程序，只是为了练习。我有一个createaccount文件，使用表单获取用户名，密码和电子邮件。然后，它将字段写入文本文件，并在文件中添加"非活动"状态，然后通过电子邮件向用户发送链接以进行验证。当用户单击激活链接时，我需要该文件检查它正在处理的用户名，然后搜索该用户的文本文件并将状态从非活动更改为活动。
不太确定如何完成这个，我的代码现在只是告诉我文件被破坏了。是否有比销毁并重新创建文件更好的方法?我是php的新手，我意识到根本不建议使用文本文件，没有真正的用户会使用这个脚本，只是我自己的个人实践，然后我用表来做。
让我知道你的想法，任何帮助都是非常感激的!
<?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>";
}
?>
请温柔一点，我又是新人
我建议您更改在文件中保存数据的方式。序列化可以帮助你，看看JSON。
下面是一段独立的工作代码，您可以将其放入新文件中，并使用任何名称(不包括电子邮件，但一旦您了解了这个想法，就很容易添加。另外，请记住打开文件以查看更改):
<?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
}
?>
使用这个结构，您可以检查用户名和密码是否匹配，只是直接访问值。要添加新用户，应该这样做(不检查是否存在):
$newUsername = 'still2blue'; // say this is form data
$newPassword = 'still2blue';
$users[$newUsername] = array('username' => $newUsername, 'password' => $newPassword, 'active' => false);
我很抱歉，如果这让我觉得太无法解释，但是当我在输入另一个时，电源断了，我失去了动力。
如果您不打算更改它，您的代码将看起来像这样(经过表面测试):
<?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>";
}
?>
请注意，您可以使用array_search.