[SOLVED] Autoload function not working

[lordzardeck]

I get this error when trying to autoload classes:

 

Fatal error: Call to undefined function: spl_autoload_register() in /homepages/36/d134836550/htdocs/test/admin/classes/autoload.php on line 9

 

Here is my page:

 

<?php
  
  function classAutoload($class_name) {

        require_once($class_name.".php");
        
  }

  spl_autoload_register('classAutoload');
  
?>

 

Anyone know what the problem is? (i hope its not staring me in the face)

[angelcool]

You are not really calling your function.

 

Try:

classAutoload('classAutoload');

 

It should work.

[genericnumber1]

Don't use spl_autoload_register(), just name the function __autoload()

 

<?php
function __autoload($class_name) {
    require_once($class_name.".php"); 
}

 

It's likely you're using a version of php pre-spl_autoload_register()

 

edit: apparently I can't spell autoload

[lordzardeck]

You are not really calling your function.

 

Try:

classAutoload('classAutoload');

 

It should work.

 

But it's not supposed to be called unless the class is not already loaded. Right?

[genericnumber1]

You are not really calling your function.

 

Try:

classAutoload('classAutoload');

 

It should work.

 

But it's not supposed to be called unless the class is not already loaded. Right?

 

Yes, I think he misunderstood your question.

[lordzardeck]

Don't use spl_autoload_register(), just name the function __autoload()

 

<?php
function __autoload($class_name) {
    require_once($class_name.".php"); 
}

 

It's likely you're using a version of php pre-spl_autoload_register()

 

edit: apparently I can't spell autoload

 

I tried using it, but it doesn't load it. Is it case sensitive?

[genericnumber1]

What version of php are you using?

 

How are you using the autoload function?

 

<?php
function __autoload($class_name) {
    require_once($class_name.".php"); 
}

MyClass::someFunction();
// or
$myclass = new MyClass();

?

 

And what do you mean is it case sensitive? the function or the class name? The class name is case sensitive on unix (maybe on windows too?).

[lordzardeck]

What version of php are you using?

 

How are you using the autoload function?

 

<?php
function __autoload($class_name) {
require_once($class_name.".php"); 
}

MyClass::someFunction();
// or
$myclass = new MyClass();

?

 

And what do you mean is it case sensitive? the function or the class name? The class name is case sensitive on unix (maybe on windows too?).

 

First off, I declare it like this:

$myclass = new MyClass();

 

Second off, what I mean is, can the file name be myclass.php, but I declare it as MyClass?

[genericnumber1]

You will need to do

 

<?php
function __autoload($class_name) {
    require_once(strtolower($class_name).".php"); 
}

 

if you want to do it that way. (On unix at least, not sure about windows, windows tends to not be case sensitive with file names)

[Mchl]

Which PHP version do you use?

SPL functions are enabled by default in PHP5.

 

By default __autoload() function is case insensitive. If you register your own, you probably need to take care of it. On windows it doesn't care avout case of course.

[lordzardeck]

it must be at least php5 because I had a wiki using php5 before. if it was php4, how would I know?

[genericnumber1]

make a page..

 

<?php
phpinfo();

 

would be the easiest way. __autoload() is case sensitive with class names on unix though because unix is case sensitive with file names.

[lordzardeck]

I still get this error:

 

Fatal error: Cannot instantiate non-existent class: menu in /homepages/36/d134836550/htdocs/test/admin/classes/pagehandler.php on line 51

 

Edit**** I have tried the last post yet

[lordzardeck]

Okay, I found out that it's 4.4.9. Dang, wonder why 1&1 didn't update?

 

So is that a problem?

[genericnumber1]

Your host may have an option to use php5, most shared hosts have a toggle where you can choose between php4 and php5.

[lordzardeck]

Does not having php5 keep me from using autoloading features?

[genericnumber1]

Yes, the differences between php4 and php5 are numerous, especially when it comes to OOP. OOP was completely revamped in php5.

 

Like I said, look around in your admin panel, there will be an option to switch to php5.

[Mchl]

I think there is no __autoload() functionality at all in PHP4

[lordzardeck]

I had to edit a .htaccess file, but it's now 5.2.8!

[lordzardeck]

can a class name when being declared be a variable? For example:

 

$page =  PageHandler::get_page();
          
$content = new $page();

[genericnumber1]

And hopefully you won't have any more problems

 

And yes, you can do that lordzard, but it's kind of confusing to whoever is reading your code.

[lordzardeck]

well, now i'm getting this error:

 

Fatal error: Class name must be a valid object or a string in /homepages/36/d134836550/htdocs/test/admin/classes/pagehandler.php on line 93

 

line 93 and the surrounding lines are:

 

      function add_content(){
      
          $page =  PageHandler::get_page();
          
          $content = new $page();
          $content->build_page();
          
      }
  }

[genericnumber1]

Can you show us the code for PageHandler::get_page()? it's likely that it's not returning a string.

[lordzardeck]

Here is the entire page:

 

<?php
          
  require_once("./classes/autoload.php");
  
  //start page render class
  class PageHandler{
      
      
      
      function page_build(){
      
          PageHandler::add_header();
          PageHandler::load_styles();
          PageHandler::end_header();
          PageHandler::add_body();
          PageHandler::add_menu();
          PageHandler::add_content();
          PageHandler::end_page();
      
      }
      
      function add_header(){
          
          print "<html>";
          print "\n<head>\n<title>SAC Online Catalog</title>";
          
      }
      
      function end_header(){
          
          print "\n</head>";
          
      }
      
      function add_body(){
      
          print "\n<body>";
      
      }
      
      function end_page(){
      
          print "\n</body>\n</html>";
      
      }
      
      function add_menu(){
      
          if(!$menu){
          
              $menu = new Menu();
              
          }else{
          
              $menu->menu_build();
          
          }
      
      }
      
      function load_styles(){
      
          $css_dir = opendir('./css');
            while($file = readdir($css_dir)){
            
                if($file != "." AND $file != ".."){
                
                    print "\n<link rel='stylesheet' type='text/css' href='$file' media='all' />";
                
                }
                
            }
          closedir($css_dir);
          
      }
      
      function set_page($function_page_load){
          
          $page_load = $function_page_load; 
          
      }
      
      function get_page(){
      
          return $page_load;
      
      }
      
      function add_content(){
      
          $page =  PageHandler::get_page();
          
          $content = new $page();
          $content->build_page();
          
      }
  }
?>

[genericnumber1]

<?php
      function get_page(){
          return $page_load;
      }

 

$page_load isn't set because it's a local variable, if you mean to address the class's member variable you'd need to do

 

<?php
      function get_page(){
          return $this->page_load;
      }

 

If you turn on E_ALL errors, it will help you debug these types of issues. It looks like all of your code is made for php4 as none of the functions have access modifiers or are set as static.