Question

在我的项目中，当按下阅读按钮时，文件的内容应该被加载到文本区域，然后用户将对该文本进行更改，然后他们应该通过单击保存按钮保存该文件的更改...问题是我可以将文件打开到textarea但是无法保存它。请看看我的代码并回答我

这是我的代码：

netcodetesting.php

    <html>
   <head>


<link rel="Stylesheet" type="text/css" href="styleee.css" />
<script src="basicbutton.js"></script>
</head>
<body>
<?php 
include('insert.php');
$con=mysqli_connect("localhost","abcde","dfdfdfdfdfd","mysql");
// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$username = mysqli_real_escape_string($con, $_POST['username']);
$password = mysqli_real_escape_string($con, $_POST['password']);
$email = mysqli_real_escape_string($con, $_POST['email_address']);


$r= mysqli_query($con,"SELECT * FROM o_assignment where email_address='$email'");
$row = mysqli_fetch_array($r);
$filename = mysqli_real_escape_string($con, $row['home_directory']);
$file= "$filename";


if(isset($_POST['text1'])){
$file_open = fopen($file,"a+"); 
fwrite($file_open, $_POST['text1']);
fclose($file_open);
mysqli_close($con);
}

?> 


<form name="form1" action="<?=$PHP_SELF?>" method ="POST" >
<button title="bold" onclick="mod_selection('\\bf{','}')" type="button"><b>B</b></button>
<button title="italic" onclick="mod_selection('\\it{','}')" type="button"><i>I</i></button>
<button title="underline" onclick="mod_selection('\\ul{','}')" type="button"><u>U</u></button>
<button title="subscript" onclick="mod_selection('\sub{','}')" type="button"><sub>subscript</sub></button>
<button title="subscript" onclick="mod_selection('\sup{','}')" type="button"><sup>supscript</sup></button>

<button title="undo" onmousedown="undo(document.form1.text1);" type="button">undo</button>
<button title="redo" onmousedown="redo(document.form1.text1);" type="button">redo</button>
<input type="button" value="Clear" onclick="eraseText('my_text');"> 
<input type="button" value="read" onclick="clientSideInclude('my_text','<?php echo openingfile(); ?>')"/>

    <input type="submit" value="save"/> 


 </br> <textarea  class="text_edit" name="text1"  id="my_text" onkeydown="countclik(document.form1.text1);" ></textarea></br></form>


</body>
</html>

insert.php

<?php

function openingfile(){
$con=mysqli_connect("localhost","abcde","dfdfdfdfdfd","mysql");
// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$username = mysqli_real_escape_string($con, $_POST['username']);
$password = mysqli_real_escape_string($con, $_POST['password']);
$email = mysqli_real_escape_string($con, $_POST['email_address']);


$r= mysqli_query($con,"SELECT * FROM o_assignment where email_address='$email'");
$row = mysqli_fetch_array($r);
$filename = mysqli_real_escape_string($con, $row['home_directory']);
$file= "$filename";
echo $file;


mysqli_close($con);

}

?>

的login.html

<html>
<body>

<form action="netcodetesting.php" method="post">
Username: <input type="text" name="username"></br>
Password: <input type="text" name="password"></br>
Email-Address: <input type="text" name="email_address"></br>
<input type="submit">
</form>

</body>
</html>

basicbutton.js

function clientSideInclude(id, url) {
  var req = false;
  // For Safari, Firefox, and other non-MS browsers
  if (window.XMLHttpRequest) {
    try {
      req = new XMLHttpRequest();
        } 
      catch (e) {
      req = false;
        }
  } 
    else if (window.ActiveXObject) {
    // For Internet Explorer on Windows
    try {
      req = new ActiveXObject("Msxml2.XMLHTTP");
        } 
        catch (e) {
      try {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        } 
            catch (e) {
            req = false;
            }
        }
  }
 var element = document.getElementById(id);
 var str = "";
 if (!element) {
  alert("Bad id " + id + 
   "passed to clientSideInclude." +
   "You need a div or span element " +
   "with this id in your page.");
  return;
 }
  if (req) {
    // Synchronous request, wait till we have it all
    req.open('GET', url, false);
    req.send(null);
    str = req.responseText;
    str=str.replace(/\\&#39;/g,"'");
    str=str.replace(/\\'/g,"'");
    str=str.replace(/\\"/g,'"');
    str=str.replace(/\\\\/g,'\\');
    str=str.replace(/\\0/g,'\0');
  element.innerHTML = str;
  } else {
    element.innerHTML =
   " -- ";
  }

我的代码中出现了什么错误？为什么文件在更改后没有保存？

如何在textarea中进行一些更改来保存现有文件？

0 个答案: