數據未保存在我的數據庫中

Question

我希望你做得很好。 我遇到了無法將數據插入數據庫的問題。 發生這種情況的原因有多種，因此請不要將其視為重復的問題。 我檢查了我的代碼。 對於一張表，它保存數據，但對於此表。 它顯示未找到同一頁面，並且沒有數據保存在本地數據庫中。 我希望你能幫助我。 提前致謝。 :)以下是一些有用的代碼段：

    <?php
include 'Header.php';
?>
<style>
    #first {
        //margin-right: 100%;
        //clear: both;

    }
    #first > img {
        display: inline-block;
        //float: left;
    }
    #first > p {
        //float: left;
        display: inline-block;
        //margin-left: 60px;
        //margin-bottom: 120px;
    }

</style>
<!-- Post content here -->

<!-- Then cmments below -->
<h1>Comments</h1>
<!--<?php ?>
if (isset($_GET['id'])) {
    $id = $_GET['id'];
} elseif (isset($_POST['id'])) {
    $id = $_POST['id'];
} else {
    echo '<p class="error"> Error has occured</p>';

    include 'footer.html';

    exit();
}

$db = new Database();
  $dbc = $db->getConnection();

  $display = 10; //number of records per page
  $pages;

if(isset($_GET['p']) ) //already calculated
{
    $pages=$_GET['p'];  
}
else
{
//use select count() to find the number of users on the DB    
    $q = "select count(comment_id) from comments";
    $r = mysqli_query($dbc, $q);
    $row = mysqli_fetch_array($r, MYSQLI_NUM);
    $records=$row[0];

    if($records > $display ) //calculate the number of pages we will need
      $pages=ceil($records/$display);  
    else
      $pages = 1;
}

//now determine where in the database to start 
if(isset($_GET['s']) ) //already calculated
   $start=$_GET['s'];  
else
    $start = 0;

 //use LIMIT to specify a range of records to select 
 // for example LIMIT 11,10 will select the 10 records starting from record 11
  $q = "select * from users order by $orderby LIMIT $start, $display";

  $r = mysqli_query($dbc, $q);

/*if ($r)
{*/

$result = mysql_query("SELECT * FROM comments WHERE video_id= '" + + "'");
//0 should be the current post's id
while($row = mysql_fetch_object($result))
{
?>
<div class="comment">
By: <!--<?php /* echo $row->author; //Or similar in your table ?>
  <p>
  <?php echo $row->body; ?>
  </p>
  </div>
  <?php
  /*} */
?>*/-->
<h1>Leave a comment:</h1>
<form action="Comment.php" method="post">
    <!-- Here the shit they must fill out -->
    <input type="text" name="comment" value="" />
    <input type="hidden" name="submitted" value="TRUE" />
    <input type="submit" name="submit" value="Insert"/>
</form>';

<?php
if (isset($_POST['submitted'])) {
    $comment = '';

    $errors = array();

    if (empty($_POST['comment']))
        $errors[] = 'You should enter a comment to be saved';
    else
        $comment = trim($_POST['comment']);



    if (empty($errors)) {
        include 'Comments_1.php';
        $comment_2 = new Comments();
        $errors = $comment_2->isValid();
        $comment_2->Comment = trim($_POST['comment']);
        $comment_2->UserName = hamed871;
        $comment_2->Video_Id = 1;
        if ($comment_2->save()) {
            echo '<div class="div_1"><div id="div_2">' .
            '<h1>Thank you</h1><p> your comment has been'
                    . ' posted successfully</p></div></div>';
        }
    }
//First check if everything is filled in
    /* if(/*some statements *//* )
      {
      //Do a mysql_real_escape_string() to all fields

      //Then insert comment
      mysql_query("INSERT INTO comments VALUES ($author,$postid,$body,$etc)");
      }
      else
      {
      die("Fill out everything please. Mkay.");
      }
      ?>

      id (auto incremented)
      name
      email
      text
      datetime
      approved--> */
}
    ?>
    <!--echo '--><div id="first">
        <img src="http://www.extremetech.com/wp-content/uploads/2013/11/emp-blast.jpg?type=square" height="42" width="42"/>
        <p>hamed1</p>
    </div><!--';-->
    <dl>
        <dt>comment1</dt>
        <dd>reply1</dd>
        <dd>reply2</dd>
    </dl>
    <!--//}
    /*else
    {

    }*/
    ?>-->
    <?php
    include 'Footer.php';
    ?>

我的評論課：

    <?php

include_once "DBConn.php";

class Comments extends DBConn {
    private $tableName = 'Comments';
    //attributes to represent table columns
    public $comment_Id = 0;
    public $Comment;
    public $UserName;
    public $Video_Id;
    public $Date_Time;

    public function save() {
        if ($this->getDBConnection()) {
            //escape any special characters
            $this->Comment = mysqli_real_escape_string($this->dbc, $this->Comment);
            $this->UserName = mysqli_real_escape_string($this->dbc, $this->UserName);
            $this->Video_Id = mysqli_real_escape_string($this->dbc, $this->Video_Id);

            if ($this->comment_Id == null) {
                $q = 'INSERT INTO comments(Comment, User_Id, Video_Id, Date_Time) values' .
                        "('" . $this->Comment . "','" . $this->User_Id . "','" . $this->Video_Id . "',NOW()')";
            } else {
                $q = "update Comments set Comment='" . $this->Comment . "', Date_Time='" . NOW() ."'";
            }


            //   $q = "call SaveUser2($this->userId,'$this->firstName','$this->lastName','$this->email','$this->password')";

            $r = mysqli_query($this->dbc, $q);

            if (!$r) {
                $this->displayError($q);
                return false;
            }

            return true;
        } else {
            echo '<p class="error">Could not connect to database</p>';
            return false;
        }

        return true;
    }

//end of function
    public function get($video_id) {
        if ($this->getDBConnection()) {

            $q = "SELECT Comment, Date_Time, UserName FROM Comments WHERE Video='" . $userName."' order by time_stamp";
            $r = mysqli_query($this->dbc, $q);

            if ($r) {
                $row = mysqli_fetch_array($r); 
                $this->Comment = mysqli_real_escape_string($this->dbc, $this->Comment);


                return true;
            }
            else
                $this->displayError($q);
        }
        else
            echo '<p class="error">Could not connect to database</p>';

        return false;
    }

    public function isValid() {
        //declare array to hold any errors messages  
        $errors = array();

        if (empty($this->Comment))
            $errors[] = 'You should enter a comment to be saved';
        return $errors;
    }
}
?>

單擊插入按鈕時顯示輸出：
未找到

在此服務器上找不到請求的URL /IndividualProject/Comment.php。 本地端口80上的Apache / 2.4.17（Win64）PHP / 5.6.16服務器

Answer 1

在登台站點上工作時，我遇到了此類問題，因為虛擬主機可能有不同種類的限制和嚴格要求。 現在我所做的就是更改文件名，例如：

類名應與文件名匹配，因為它區分大小寫。

Comment.php

class Comment extends DBConn {

function __construct () {
parent::__construct ();
}

//code here..

 }