xmpphp/XMPPHP/XMLObj.php

<?php 
/**
 * XMPPHP: The PHP XMPP Library
 * Copyright (C) 2008  Nathanael C. Fritz
 * This file is part of SleekXMPP.
 * 
 * XMPPHP is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * XMPPHP is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with XMPPHP; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   xmpphp 
 * @package    XMPPHP
 * @author     Nathanael C. Fritz <JID: fritzy@netflint.net>
 * @author     Stephan Wentz <JID: stephan@jabber.wentz.it>
 * @copyright  2008 Nathanael C. Fritz
 */

/**
 * XMPPHP XML Object
 * 
 * @category   xmpphp 
 * @package    XMPPHP
 * @author     Nathanael C. Fritz <JID: fritzy@netflint.net>
 * @author     Stephan Wentz <JID: stephan@jabber.wentz.it>
 * @copyright  2008 Nathanael C. Fritz
 * @version    $Id$
 */
class XMPPHP_XMLObj {
    /**
     * Tag name
     *
     * @var string
     */
    public $name;
    
    /**
     * Namespace
     *
     * @var string
     */
    public $ns;
    
    /**
     * Attributes
     *
     * @var array
     */
    public $attrs = array();
    
    /**
     * Subs?
     *
     * @var array
     */
    public $subs = array();
    
    /**
     * Node data
     * 
     * @var string
     */
    public $data = '';

    /**
     * Constructor
     *
     * @param string $name
     * @param string $ns
     * @param array  $attrs
     * @param string $data
     */
    public function __construct($name, $ns = '', $attrs = array(), $data = '') {
        $this->name = strtolower($name);
        $this->ns   = $ns;
        if(is_array($attrs) && count($attrs)) {
            foreach($attrs as $key => $value) {
                $this->attrs[strtolower($key)] = $value;
            }
        }
        $this->data = $data;
    }

    /**
     * Dump this XML Object to output.
     *
     * @param integer $depth
     */
    public function printObj($depth = 0) {
        print str_repeat("\t", $depth) . $this->name . " " . $this->ns . ' ' . $this->data;
        print "\n";
        foreach($this->subs as $sub) {
            $sub->printObj($depth + 1);
        }
    }

    /**
     * Return this XML Object in xml notation
     *
     * @param string $str
     */
    public function toString($str = '') {
        $str .= "<{$this->name} xmlns='{$this->ns}' ";
        foreach($this->attrs as $key => $value) {
            if($key != 'xmlns') {
                $value = htmlspecialchars($value);
                $str .= "$key='$value' ";
            }
        }
        $str .= ">";
        foreach($this->subs as $sub) {
            $str .= $sub->toString();
        }
        $body = htmlspecialchars($this->data);
        $str .= "$body</{$this->name}>";
        return $str;
    }

    /**
     * Has this XML Object the given sub?
     * 
     * @param string $name
     * @return boolean
     */
    public function hasSub($name) {
        foreach($this->subs as $sub) {
            if($sub->name == $name) return true;
        }
        return false;
    }

    /**
     * Return a sub
     *
     * @param string $name
     * @param string $attrs
     * @param string $ns
     */
    public function sub($name, $attrs = null, $ns = null) {
        foreach($this->subs as $sub) {
            if($sub->name == $name) {
                return $sub;
            }
        }
    }
}