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更改个性化用户设置PHP

php forms

更改个性化用户设置PHP,php,forms,Php,Forms,我正在开发一个PHP登录页面。第一页显示两个表单，一个登录和注册表单，并进行一些表单验证。当用户登录时，它会从文本文件中读取他们的信息。信息如下所示： username;password;fname;lname;pagetitle;bgcolor;imgURL 在图像之后出现行的结尾。然后，此信息将填充下一页上的表单，以便用户可以根据自己的选择进行编辑。我不知道当用户提交更改时如何从文件中读取行，然后将其写回文件。我还需要知道在提交这些更改时如何更改bgcolor和imgURL 下面列

我正在开发一个PHP登录页面。第一页显示两个表单，一个登录和注册表单，并进行一些表单验证。当用户登录时，它会从文本文件中读取他们的信息。信息如下所示：

username;password;fname;lname;pagetitle;bgcolor;imgURL
在图像之后出现行的结尾。然后，此信息将填充下一页上的表单，以便用户可以根据自己的选择进行编辑。我不知道当用户提交更改时如何从文件中读取行，然后将其写回文件。我还需要知道在提交这些更改时如何更改bgcolor和imgURL

下面列出了我当前的代码

<?php
session_start();
$bkcolor = "red";
   if(isset($_GET['exit'])){
      session_unset();
      session_destroy();
   }
if(isset($_SESSION['loggedin']) && $_SESSION['loggedin'] == true){
?>
<h1>Welcome to First Last's Assignment 11 PHP page!</h1>
<?php
echo"Hello, ".$_SESSION['fname']. " " .$_SESSION['lname']."!";
//echo $_SESSION['image'];
?>

<form name  = "logoutForm" action = "assignment11.php" method = "get">
   <input type = "hidden" name = "logout" value = "doLogout"><br>
   <input type = "submit" name = "exit" value = "Logout" />
</form></div>
<br><hr><br>

<form name = "editAccountForm" action = "assignment11.php" method = "get">
   First name:<input type = "text" name = "fname" value = "<?php echo"      $_SESSION['fname']; ?>" /><br>
   Last name:<input type = "text" name = "lname" value = "<?php echo     $_SESSION['lname']; ?>" /><br>
   Title:<input type = "text" name = "title" value = "<?php echo $_SESSION['title'];     ?>" /><br>
   <input type = "hidden" name = "edit" value = "true">
   <input type = "submit" name = "edit1" value = "Edit Account Info" />
</form>
<?php
}else{
?>

<head><title>Welcome to First Last's Assignment 11 PHP page!</title></head>
<body bgcolor = "<?php echo $bkcolor; ?>" > 
<h1>Welcome to First Last's Assignment 11 PHP page!</h1>
<br>
<div id = "login">
If you have an existing account login here:<br>
<form method = "get" action = "assignment11.php" name = "loginForm">
   Username: <input type = "text" name = "user1" /><br>
   Password: <input type = "password" name = "pass1" /><br>
<input type = "submit" name = "login" value = "Login!" />
</form></div>
<br><hr><br>

<div id = "create">
If you'd like to create an account login here:<br>
<form method = "get" action = "assignment11.php" name = "createForm">
   Username: <input type = "text" name = "user" /><br>
   Password: <input type = "password" name = "pass" /><br>
   First Name: <input type = "text" name = "first" /><br>
   Last Name: <input type = "text" name = "last" /><br>
   <input type = "hidden" name = "create" value = "true" />
   <input type = "submit" name = "register" value = "Create Account!" />
   <p id = "incorrect"></p>
</form></div>

<?php
}
   $image = '<img src = "http://upload.wikimedia.org/wikipedia/commons/thumb    /9/94/Stick_Figure.svg/170px-Stick_Figure.svg.png />';
   //$bkcolor = "yellow";
   $myfile = fopen("assignment11-account-info.txt", "a+");
   $file = fread($myfile,filesize("assignment11-account-info.txt"));
   $title = "Welcome to First Last's Assignment 11 PHP page!";
   $result = file_get_contents("assignment11-account-info.txt");

   $result = str_replace(PHP_EOL,";",$result);
   $result = explode(";",$result);

   if(isset($_GET['register'])){
   $user = $_GET['user'];
   $password = $_GET['pass'];
   $first = $_GET['first'];
   $last = $_GET['last'];
   $found = false;

   if(empty($user)){
      echo"Enter a username.";
   }else{
      $user = $user;
   }
   if(empty($password)){
      echo"Enter a password.";
   }
   else{
      $password = $password;
   }
   if(empty($first)){
      echo"Enter first name.";
   }
   else{
      $first = $first;
   }
   if(empty($last)){
      echo"Enter last name.";
   }
   else{
      $last = $last;
   }
//   $found = true;
   for($i = 0; $i < count($result); $i++){
      if($result[$i] === $user){
         $found = true;
         echo"Username unavailable";
         break;
      }
   }
      if($found == false){
         $_SESSION['username'] = $user;
         $_SESSION['password'] = $password;
         $_SESSION['fname'] = $_GET['first'];
         $_SESSION['lname'] = $_GET['last'];
         $_SESSION['title'] = $title;
         echo "HERE!";
         fwrite($myfile,$user.";".$password.";".$first.";".$last.";".$bkcolor.";".$title.";".$image.PHP_EOL);
        echo"<script>document.getElementById('login').style.display = 'none'</script>";
        echo"<script>document.getElementById('create').style.display = 'none'</script>";
?>

<form name  = "logoutForm" action = "assignment11.php" method = "get">
   <input type = "hidden" name = "logout" value = "doLogout"><br>
   <input type = "submit" name = "exit" value = "Logout" />

忘记了txt文件，无法维护，使用mysqlI无法使用mysql。它是为了教育目的，所以它必须是一个.txt文件。你将需要写入该文件，或用于阅读。或者如果你想变得足智多谋。你有一个CSV文件。对不起，没有简单易行的解决方案。每次都必须解析整个文件，或者逐行解析，直到使用fopen和fgets找到用户名，或者使用file在数组中获取整个文件，循环遍历数组并记住用户所在的索引。然后你可以重新组合这一行和整个文件，然后保存它。我会试着读懂那些马里奥。他们中没有人在课堂上讨论过，所以我会看看我能想出什么。 
 <form name = "editAccountForm" action = "assignment11.php" method = "get">
   First name:<input type = "text" name = "fname" value = "<?php echo     $_SESSION['fname']; ?>" /><br>
   Last name:<input type = "text" name = "lname" value = "<?php echo     $_SESSION['lname']; ?>" /><br>
   Title:<input type = "text" name = "title" value = "<?php echo $title; ?>" /><br>
   Background color:<input type = "text" name = "bkcolor" value = "<?php echo     $bkcolor;     ?>" /><br>
   Image:<input type = "text" name = "image" size = "100" value = "testing" /><br>
   <input type = "hidden" name = "edit" value = "true">
   <input type = "submit" name = "edit1" value = "Edit Account Info" />
</form>
<?php
      }
   }

   if(isset($_GET['login'])){
      $user = $_GET['user1'];
      $password = $_GET['pass1'];
//      $image = '<img src = "http://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Stick_Figure.svg/170px-Stick_Figure.svg.png />';
//      echo $image;
      for($i = 0; $i < count($result); $i++){
         if($result[$i] === $user && $result[$i+1] === $password){
            echo"<script>document.getElementById('login').style.display = 'none'</script>";
            echo"<script>document.getElementById('create').style.display = 'none'</script>";
            $_SESSION['username'] = $user;
            $_SESSION['password'] = $password;
            $_SESSION['fname'] = $result[$i+2];
            $_SESSION['lname'] = $result[$i+3];
            $_SESSION['title'] = $title;
//            $_SESSION['image'] = $image;
            $_SESSION['loggedin'] = true;
            echo"Hello, ".$_SESSION['fname']." ".$_SESSION['lname']."!";
//            echo $_SESSION['image'];            
?>

<form name  = "logoutForm" action = "assignment11.php" method = "get">
   <input type = "hidden" name = "logout" value = "doLogout"><br>
   <input type = "submit" name = "exit" value = "Logout" />
</form></div>
<br><hr><br>

<form name = "editAccountForm" action = "assignment11.php" method = "get">
   First name:<input type = "text" name = "fname" value = "<?php echo $_SESSION['fname']; ?>" /><br>
   Last name:<input type = "text" name = "lname" value = "<?php echo $_SESSION['lname']; ?>" /><br>
   Title:<input type = "text" name = "title" value = "<?php echo $title; ?>" /><br>
   Background color:<input type = "text" name = "bkcolor" value = "<?php echo $bkcolor; ?>" /><br>
   Image:<input type = "text" name = "image" size = "100" value = "testing" /><br>
   <input type = "hidden" name = "edit" value = "true">
   <input type = "submit" name = "edit1" value = "Edit Account Info" />
</form>
<?php
         }
         else if($result[$i] === $user && $result[$i+1] !== $password){
            echo"Incorrect password!";
         }
/*         else if($result[$i] !== $user){
            echo"Invalid username. Have you registered?";
            break;
         }*/
      }
   }
   if(isset($_GET['exit'])){
      session_unset();
      session_destroy();
   }

   if(isset($_GET['edit1'])){
      for($i = 0; $i < count($result); $i++){
         if($result[$i] == $_SESSION['username']){

$_SESSION['username'].";".$_SESSION['password'].";".$_GET['fname'].";".$_GET['lname'].";".$_GET['title'].";".$_GET['bkcolor'].";".$_GET['image'].PHP_EOL);
         }
      }

   }

//   print_r($_SESSION);
?>
</body>
</html>