“致命错误：调用未定义的函数”错误

Question

The following error :

  Fatal error: Call to undefined function add() in E:\xampp\htdocs\paperblog\Admin\AddNewPost.php on line 18

line 18 :

 $msg=add($title,$subtitle,$details,$_FILES['_postImage']);

The whole codes (HTML ,PHP)are in the following lines.

I've 4 files:

1. The AddNewPost.php file is the main file has the HTML code.

   • Has PHP code :

    <?php
     include_once("..\DB.php");
     include_once("..\Classes\post.php");
   
     $title="";
     $subtitle="";
     $details="";
     $msg="";
   
     if(isset($_POST['_PostSubmit']))
     {
             $title=$_POST['_PostTitle'];
             $subtitle=$_POST['_PostSubTtile'];
             $details=$_POST['_PostDetails'];
   
             if(  !empty($title)||!empty($subtitle)||!empty($details) )
                             {
               $msg=add($title,$subtitle,$details,$_FILES['_postImage']);
   
                             }
            else
                  $msg=" The post is empty ";
   
     }
   
   
   
     include_once("Header.php");
   ?>
   

   • And HTML:

      <form action="AddNewPost.php" method="post" id="cmntfrm" enctype= "multipart/form-data">
   
            <P align="center" style="color:#F00"><?=$msg?></P>
            <p>&nbsp; </p>
   
             <table width="600" border="0" align="center">
                      <img src="../images/addNewPost.png"/>
                       <br />
                       <br />
   
                     <tr>
                           <td width="131">Post Title <h8 style="color:#F00">*</h8>:</td>
                           <td width="443"><input name="_PostTitle" type="text" /></td>
   
                     </tr>
                     <tr>
                           <td>Post Sub Title <h8 style="color:#F00">*</h8>:</td>
                           <td><input name="_PostSubTtile" type="text" /></td>
   
                     </tr>
                     <tr>
                           <td>Post Details :</td>
                           <td><textarea name="_PostDetails" cols="32" rows="7">&nbsp;</textarea></td>
   
                     </tr>
                     <tr>
                           <td>Post Image :</td>
                           <td><input name="_postImage" type="file"/></td>
                     </tr>
                     <tr>
                           <td>&nbsp;</td>
                           <td>&nbsp;</td>
                     </tr>
                     <tr>
                           <td></td>
                           <td><input name="_PostSubmit" type="submit" value="Save" id="submit" /></td>
                     </tr>
           </table>
           <center>
                  <img src="../Post_Imges/a.jpg" height="420" width="460" />
           </center>
   

---

1. Thepost.php file which has functions of the post form where is in the classes folder. It Has PHP code:

      <?php 
   include_once("../DB.php");
   
   class post{
   
     var $Post_ID;
     var $title,$subtitle,$postdetail,$Post_Imgs;
     var $pmonth ,$pyear ,$pday;
   
   
   
   
   function add($title,$subtitle,$postdetail,$file){
           $query=" insert into post(Title,SubTitle,PostDetails,PDay,PMonth,PYear)
                                values('$title,'$subtitle','$postdetail'".date("d").",".date("m").",".date("Y").")";
           $this->Post_ID=$this->GetLastPostId();
           $msg=test("Add",$query);
           $msg.="<br/>".$this->uploadImage($file);
           return $msg;    
   
         }
   
   
   function GetLastPostId(){
             $query="select Max(Post_ID) from Post";
             $result=mysql_query($query);
             $row=mysql_fetch_row($result);
             return $row[0];
   
             }
   
   function uploadImage($file){
         uploadFile("Post_Imges\$Post_ID.jpg",$file);
   
         }
   } 
   ?>
   

---

3.The DB.php file which has some function for DB. It has :

     <?php
        include_once("functions.php");

                    mysql_connect("localhost","root",""); 
                    mysql_select_db("paperbloge");

                    function test($test ,$query){

                    mysql_query($query);
                    if(!empty(mysql_errno()))
                                                  return "Post ".$test." Successfully" ;
                                       else
                                                  return "Error".mysql_errno().":".mysql_error();


                }


?>

---

1. Finaly, functions.phpfile which has uploadfile function.

           function uploadFile($folderPathFileName,$file){
   
                 if (!empty($file['tmp_name'])){
   
                                  move_uploaded_file($file['tmp_name'],$_SERVER['DOCUMENT_ROOT']."\paperblog\ ".$folderFileName);
                                                 $msg.="<br/> Image uploaded Successfully";                
                                             }
                else 
                                                 $msg= "Image File too large or No Image File";
                return $msg;       
   
               }
   ?>
   

---

Thats the whole codes that i've .

Does anyone know what is wrong here that cause this problem?

Thanks

---

Ya it's working , But have some errors again . Thanks for your helping .

Answer 1

add() is not a function. It is a method of a class called "post". That means you have to instantiate that class and then call that method:

$post = new Post();
$msg=$post->add($title,$subtitle,$details,$_FILES['_postImage']);