[SOLVED] "Fatal error: Call to a member function mk_content() on a non-object"

[deadonarrival]

Fatal error: Call to a member function mk_content() on a non-object in D:\Server\xampp\htdocs\pages\jonathanstory\mod_main.php on line 13

 

I get this error when I try to use a function in an included file

 

My file structure is as follows

 

INDEX.PHP - includes functions.php - includes "content" class (also where the object is created)

  |

includes mod_main.php

 

If I use a function "mk_content" in the "content" class, I get the above error... but if I use it in index.php I get no error.

 

As far as I can tell it works okay if I put the $content = new content(); in the mod_main.php file - but I didn't particularly want to have to do this in each page, I want the included pages not to have to have further includes in them (except for functions.php)

 

Hope that makes sense....

 

Anyway - my question is whether there's any other way to avoid this error without having to use the line $content = new content(); in the module (is this called creating an instance?), or do I have to do it in every included page?

[shamilton]

Would you mind showing us the code where you include the files?

The order might be relevant.

[deadonarrival]

... denotes code I'm reasonably sure doesn't affect it.

 

index.php

<?
session_start();

// Need this, otherwise die
require_once("inc_functions.php");

...

if(!empty($err2))
    {
     $content->mk_content("An error has occured",date("H:i:s D dS M y"),"","$err2","");
    }

include($inc_pg);

 

Functions is included as the second line of code.

 

inc_functions.php

<?php

include_once("class/var.php");
include_once("class/db.php");
include_once("class/content.php");

$db = new db();
$db->connect();

...

?>

 

Again, the class is included before any output

Var just cleans input variables, DB is the DB connection

 

class/content.php

<?

class content {
      function mk_content($title,$date,$pic,$content,$page)
      {
        # Prints out a table with the above vars
        ...
      }
}

$content = new content();

 

The bit that confuses me is that the line in curly braces will make display correctly, but the included $inc_pg won't use the function unless I have $content = new content();in the included page. index.php seems okay with it being just in the class file.

[deadonarrival]

Solved - that was stupid of me... I was using $content variable twice ¬_¬ what a pratt

[deadonarrival]

Ugh, now I have the same problem again, but the reason for it seems to be different :s

 

Index.php

<?
session_start();

require_once("inc_functions.php");

include("mod_blog.php");
?>

 

inc_functions.php

<?php

include_once("class/var.class.php"); $c_var = new clean();
include_once("class/db.class.php");  $c_db = new db();
include_once("class/content.class.php"); $c_content = new content();
include_once("class/news.class.php"); $c_news = new news();
# include_once("class/img_rotator.class.php"); $c_image = new image();

$c_db->connect($dhost,$duser,$dppass,$dbase);

?>

 

As far as I can tell the news.class.php should be able to use the $c_content class, but I get the same error

Fatal error: Call to a member function make() on a non-object in "D:\Server\xampp\htdocs\pages\jonathanstory\class\news.class.php on line 53"

 

Why will the class carry over to some pages, and not to other. I'm sure there's nothing using the $c_content variable this time - and as far as I can tell I'm using it all in the correct order.

 

Do I need to pass the $c_content variable to the function specifically?

ie instead of make($var) I need make($var,$c_content)

 

Any help appreciated

 

(N.B - I can't find a way to edit my posts - apologies for the triple-post)

[deadonarrival]

Aha, found the answer here

 

http://www.phpfreaks.com/forums/index.php/topic,149608.0.html

 

Solved - and now I know a little more about classes