顯示論壇數據時出錯

Question

我試圖顯示來自數據庫的數據輸出，但顯示錯誤。我想創建論壇，將顯示同一頁上的消息

我的錯誤是：

$ mysqli_query（$的SQL）;

注意：未定義的變量：mysqli_query

致命錯誤：函數名稱必須是一個字符串

我的編碼是

` 如果（修剪（$ _ POST [ 'forum_numberUser']）== NULL || TRIM（$ _ POST [ 'forum_text']）== NULL）

 { // If the user didn't fill in all fields 
     echo "<h3>PLEASE COMPLETE THE FORM TO REGISTER</h3>"; 
    } 
    else { 
     include('connect.php'); 

     $_SESSION['FILLED'] = TRUE; 
     // username and password sent from form 
     $mynumberUser=$_POST['forum_numberUser']; 
     $mytext=$_POST['forum_text']; 
     // $mydate=$_POST['forum_date']; 


     // To protect MySQL injection (more detail about MySQL injection) 
     $mynumberUser = stripslashes($mynumberUser); 
     $mytext = stripslashes($mytext); 
     $mynumberUser = mysql_real_escape_string($mynumberUser); 
     $mytext = mysql_real_escape_string($mytext); 
     $mydate=date('Y-m-d H:i:s'); 
     //$mytime=date('H:i:s'); 

     $sql = "INSERT INTO forum VALUES(null, '$mynumberUser', '$mytext', '$mydate')"; 
     $mysqli_query($sql); //HERE IS MY ERROR... 


     if(mysqli_query($conn, $sql) === TRUE) { 


      //&['forum_text'] 
      echo "Successfully registered "; 
     } 
     else { 
      echo "<h4>Unable to register.</h4>"; 
     } 
    } 

}` 

Answer 1

你有函數調用0123前，這是變量的語法，而不是函數。