I'm at a loss here. I've defined an abstract superclass in one file and a subclass in another. I have required the super-classes file and the stack trace reports to find an include it. However, it then returns an error when it hits the 'extends' line: Fatal error: Class 'HTMLBuilder' not found in View/Markup/HTML/HTML4.01/HTML4_01Builder.php on line 7. I had this working with another class tree that uses factories a moment ago. I just added the builder layer in between the factories and the consumer. The factory layer looked almost exactly the same in terms of includes and dependencies. So that makes me think I must have done something silly that's causes the HTMLBuilder.php file to not be included correctly or interpreted correctly or some such.
Here's the full stack trace (paths slightly altered):
# Time Memory Function Location
1 0.0001 53904 {main}( ) ../index.php:0
2 0.0002 67600 require_once( 'View/Page.php' ) ../index.php:3
3 0.0003 75444 require_once( 'View/Sections/SectionFactory.php' ) ../Page.php:4
4 0.0003 81152 require_once( 'View/Sections/HTML/HTMLSectionFactory.php' ) ../SectionFactory.php:3
5 0.0004 92108 require_once( 'View/Sections/HTML/HTMLTitlebarSection.php' ) ../HTMLSectionFactory.php:5
6 0.0005 99716 require_once( 'View/Markup/HTML/HTMLBuilder.php' ) ../HTMLTitlebarSection.php:3
7 0.0005 103580 require_once( 'View/Markup/MarkupBuilder.php' ) ../HTMLBuilder.php:3
8 0.0006 124120 require_once( 'View/Markup/HTML/HTML4.01/HTML4_01Builder.php' ) ../MarkupBuilder.php:3
Here's the code in question:
Parent class (View/Markup/HTML/HTMLBuilder.php):
<?php
require_once('View/Markup/MarkupBuilder.php');
abstract class HTMLBuilder extends MarkupBuilder {
public abstract function getLink($text, $href);
public abstract function getImage($src, $alt);
public abstract function getDivision($id, array $classes=NULL, array $children=NULL);
public abstract function getParagraph($text, array $classes=NULL, $id=NULL);
}
?>
Child Class, (View/Markup/HTML/HTML4.01/HTML4_01Builder.php):
<?php
require_once('HTML4_01Factory.php');
require_once('View/Markup/HTML/HTMLBuilder.php');
class HTML4_01Builder extends HTMLBuilder {
private $factory;
public function __construct() {
$this->factory = new HTML4_01Factory();
}
public function getLink($href, $text) {
$link = $this->factory->getA();
$link->addAttribute('href', $href);
$link->addChild($this->factory->getText($text));
return $link;
}
public function getImage($src, $alt) {
$image = $this->factory->getImg();
$image->addAttribute('src', $src);
$image->addAttribute('alt', $alt);
return $image;
}
public function getDivision($id, array $classes=NULL, array $children=NULL) {
$div = $this->factory->getDiv();
$div->setID($id);
if(!empty($classes)) {
$div->addClasses($classes);
}
if(!empty($children)) {
$div->addChildren($children);
}
return $div;
}
public function getParagraph($text, array $classes=NULL, $id=NULL) {
$p = $this->factory->getP();
$p->addChild($this->factory->getText($text));
if(!empty($classes)) {
$p->addClasses($classes);
}
if(!empty($id)) {
$p->setID($id);
}
return $p;
}
}
?>
I would appreciate any and all ideas. I'm at a complete loss here as to what is going wrong. I'm sure it's something stupid I just can't see...