Simple Object for HTML to PDF

htmltopdf.php

<?php 
// binary source: http://code.google.com/p/wkhtmltopdf/
class HtmlToPdf {

	// generator setup
	private $converter = 'wkhtmltopdf';
	private $command;
	
	// files
	public $html;
	public $destinationPath;
	public $output;
	// parameters
	public $parameters = array();

	public function render() {
		$this->destinationPath = pathinfo($this->output, PATHINFO_DIRNAME);

		if (!is_dir($this->destinationPath)) {
			if (!mkdir($this->destinationPath, 0755)) {
				echo 'could not create destination folder';
				return false;
			}
		}

		$this->buildCommand();

		exec($this->command . ' 2>&1', $debug, $state);

		return ($state == 0);
	}

	private function buildCommand() {

		$this->command = $this->converter;

		foreach ($this->parameters as $key => $value) {
			$this->command .= ' ' . $key . ' ' . $value;
		}

		$this->command .= ' ' . $this->html . ' ' . $this->output;
	}

	public function filetodata() {
		$handle = fopen($this->output, "r");
		;
		return fread($handle, filesize($this->output));
	}

	public function direct($data, $contentDisposition = 'inline', $filename = null) {
		if (!isset($filename))
			$filename = uniqid();

		$this->getResponse()->setHeader('Content-Type', 'application/force-download; name="' . $filename . '"');
		switch ($contentDisposition) {
			case 'inline':
				$this->getResponse()->setHeader('Content-Disposition', 'inline; filename="' . $filename . '"');
				break;
			case 'attachment':
				$this->getResponse()->setHeader('Content-Disposition', "attachment; filename=\"$filename.pdf\"");
				break;
			default:
				throw new Exception("Unknown Content-Disposition ($contentDisposition)");
		}

		$this->getResponse()->setHeader('Content-Length', strlen($data))
				->setHeader('Content-Transfer-Encoding', 'binary')
				->setHeader('Expires', 0)
				->setHeader('Cache-Control', 'private, max-age=0, must-revalidate')
				->setHeader('Pragma', 'public')
				->setBody($data);
	}

}

?>