"Fatal error: Call to undefined function " Error

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:

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>

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();


                }


?>

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 .

add function is under post class and you need to instantiate the class before calling the function something as $post = new post(); $post->add() — Abhik Chakraborty
– Abhik Chakraborty, Commented Sep 16, 2014 at 14:56
@AbhikChakraborty i added one of them untill i solve other by myself. If i don't, I'll add them here — Norhan
– Norhan, Commented Sep 16, 2014 at 15:12
They should be asked in a new question, as your initial question has been solved, IMO. — ʰᵈˑ
– ʰᵈˑ, Commented Sep 16, 2014 at 15:14

John Conde · Accepted Answer · 2014-09-16 14:56:20Z

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']);

answered Sep 16, 2014 at 14:56

John Conde

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ʰᵈˑ · Accepted Answer · 2014-09-16 14:55:58Z

1

add is part of the class post

Change your line to;

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

answered Sep 16, 2014 at 14:55

ʰᵈˑ

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