offline
- Marko_88
- Građanin
- Pridružio: 24 Mar 2006
- Poruke: 273
- Gde živiš: Beograd
|
Imam jedan problem koji od sinoc ne mogu da resim...
Naime za citanje rss-a koristim OVAJ feed parser i sve radi perfektno sem sto mi u bazu umesto navodnika ubacuje kod koji protom nije potpun "#8221".
evo da postavim i ovde kod da ne skidate pa pogledajte mozda nadjete neku gresku...
<?php
/*
HOW TO USE
-----------------------------------------------------------------------
It's very easy to use. Just follow this 3 steps:
1. Include the file
include('FeedParser.php');
2. Create an object of FeedParser class
$Parser = new FeedParser();
3. Parse the URL you want to featch
$Parser->parse('http://www.sitepoint.com/rss.php');
Done.
Now you can use this functions to get various information of parsed feed:
1. $Parser->getChannels() - To get all channel elements as array
2. $Parser->getItems() - To get all feed elements as array
3. $Parser->getChannel($name) - To get a channel element by name
4. $Parser->getItem($index) - To get a feed element as array by it's index
5. $Parser->getTotalItems() - To get the number of total feed elements
6. $Parser->getFeedVersion() - To get the detected version of parsed feed
7. $Parser->getParsedUrl() - To get the parsed feed URL
=======================================================================
IMPORTANT NOTES
-----------------------------------------------------------------------
1. All array keys are must be UPPERCASE
2. All dates are converted to timestamp
3. Attributes of a tag will be found under TAGNAME_ATTRS index
example: Attributes of $item['GUID'] will be found as $item['GUID_ATTRS']
4. The tags which have subtags will be an array and sub tags will be found as it's element
example: IMAGE tag in RSS 2.0
========================================================================
*/
class FeedParser{
private $xmlParser = null;
private $insideItem = array(); // Keep track of current position in tag tree
private $currentTag = null; // Last entered tag name
private $currentAttr = null; // Attributes array of last entered tag
private $namespaces = array(
'http://purl.org/rss/1.0/' => 'RSS 1.0',
'http://purl.org/rss/1.0/modules/content/' => 'RSS 2.0',
'http://www.w3.org/2005/Atom' => 'ATOM 1',
); // Namespaces to detact feed version
private $itemTags = array('ITEM','ENTRY'); // List of tag names which holds a feed item
private $channelTags = array('CHANNEL','FEED'); // List of tag names which holds all channel elements
private $dateTags = array('UPDATED','PUBDATE','DC:DATE');
private $hasSubTags = array('IMAGE','AUTHOR'); // List of tag names which have sub tags
private $channels = array();
private $items = array();
private $itemIndex = 0;
private $url = null; // The parsed url
private $version = null; // Detected feed version
/**
* Constructor - Initialize and set event handler functions to xmlParser
*/
function __construct()
{
$this->xmlParser = xml_parser_create();
xml_set_object($this->xmlParser, $this);
xml_set_element_handler($this->xmlParser, "startElement", "endElement");
xml_set_character_data_handler($this->xmlParser, "characterData");
}
/*-----------------------------------------------------------------------+
| Public functions. Use to parse feed and get informations. |
+-----------------------------------------------------------------------*/
/**
* Get all channel elements
*
* @access public
* @return array - All chennels as associative array
*/
public function getChannels()
{
return $this->channels;
}
/**
* Get all feed items
*
* @access public
* @return array - All feed items as associative array
*/
public function getItems()
{
return $this->items;
}
/**
* Get total number of feed items
*
* @access public
* @return number
*/
public function getTotalItems()
{
return count($this->items);
}
/**
* Get a feed item by index
*
* @access public
* @param number index of feed item
* @return array feed item as associative array of it's elements
*/
public function getItem($index)
{
if($index < $this->getTotalItems())
{
return $this->items[$index];
}
else
{
throw new Exception("Item index is learger then total items.");
return false;
}
}
/**
* Get a channel element by name
*
* @access public
* @param string the name of channel tag
* @return string
*/
public function getChannel($tagName)
{
if(array_key_exists(strtoupper($tagName), $this->channels))
{
return $this->channels[strtoupper($tagName)];
}
else
{
throw new Exception("Channel tag $tagName not found.");
return false;
}
}
/**
* Get the parsed URL
*
* @access public
* @return string
*/
public function getParsedUrl()
{
if(empty($this->url))
{
throw new Exception("Feed URL is not set yet.");
return FALSE;
}
else
{
return $this->url;
}
}
/**
* Get the detected Feed version
*
* @access public
* @return string
*/
public function getFeedVersion()
{
return $this->version;
}
/**
* Parses a feed url
*
* @access public
* @param srting teh feed url
* @return void
*/
public function parse($url)
{
$this->url = $url;
$URLContent = $this->getUrlContent();
if($URLContent)
{
$segments = str_split($URLContent, 4096);
foreach($segments as $index=>$data)
{
$lastPiese = ((count($segments)-1) == $index)? true : false;
xml_parse($this->xmlParser, $data, $lastPiese)
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($this->xmlParser)),
xml_get_current_line_number($this->xmlParser)));
}
xml_parser_free($this->xmlParser);
}
else
{
die('Sorry! cannot load the feed url.');
}
if(empty($this->version))
{
die('Sorry! cannot detect the feed version.');
}
}
// End public functions -------------------------------------------------
/*-----------------------------------------------------------------------+
| Private functions. Be careful to edit them. |
+-----------------------------------------------------------------------*/
/**
* Load the whole contents of a RSS/ATOM page
*
* @access private
* @return string
*/
private function getUrlContent()
{
if(empty($this->url))
{
throw new Exception("URL to parse is empty!.");
return false;
}
if($content = @file_get_contents($this->url))
{
return $content;
}
else
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$content = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch);
if(empty($error))
{
return $content;
}
else
{
throw new Exception("Erroe occured while loading url by cURL. <br />\n" . $error) ;
return false;
}
}
}
/**
* Handle the start event of a tag while parsing
*
* @access private
* @param object the xmlParser object
* @param string name of currently entering tag
* @param array array of attributes
* @return void
*/
private function startElement($parser, $tagName, $attrs)
{
if(!$this->version)
{
$this->findVersion($tagName, $attrs);
}
array_push($this->insideItem, $tagName);
$this->currentTag = $tagName;
$this->currentAttr = $attrs;
}
/**
* Handle the end event of a tag while parsing
*
* @access private
* @param object the xmlParser object
* @param string name of currently ending tag
* @return void
*/
private function endElement($parser, $tagName)
{
if (in_array($tagName, $this->itemTags))
{
$this->itemIndex++;
}
array_pop($this->insideItem);
$this->currentTag = $this->insideItem[count($this->insideItem)-1];
}
/**
* Handle character data of a tag while parsing
*
* @access private
* @param object the xmlParser object
* @param string tag value
* @return void
*/
private function characterData($parser, $data)
{
//Converting all date formats to timestamp
if(in_array($this->currentTag, $this->dateTags))
{
$data = strtotime($data);
}
if($this->inChannel())
{
// If has subtag, make current element an array and assign subtags as it's element
if(in_array($this->getParentTag(), $this->hasSubTags))
{
if(! is_array($this->channels[$this->getParentTag()]))
{
$this->channels[$this->getParentTag()] = array();
}
$this->channels[$this->getParentTag()][$this->currentTag] .= strip_tags($this->unhtmlentities((trim($data))));
return;
}
else
{
if(! in_array($this->currentTag, $this->hasSubTags))
{
$this->channels[$this->currentTag] .= strip_tags($this->unhtmlentities((trim($data))));
}
}
if(!empty($this->currentAttr))
{
$this->channels[$this->currentTag . '_ATTRS'] = $this->currentAttr;
//If the tag has no value
if(strlen($this->channels[$this->currentTag]) < 2)
{
//If there is only one attribute, assign the attribute value as channel value
if(count($this->currentAttr) == 1)
{
foreach($this->currentAttr as $attrVal)
{
$this->channels[$this->currentTag] = $attrVal;
}
}
//If there are multiple attributes, assign the attributs array as channel value
else
{
$this->channels[$this->currentTag] = $this->currentAttr;
}
}
}
}
elseif($this->inItem())
{
// If has subtag, make current element an array and assign subtags as it's elements
if(in_array($this->getParentTag(), $this->hasSubTags))
{
if(! is_array($this->items[$this->itemIndex][$this->getParentTag()]))
{
$this->items[$this->itemIndex][$this->getParentTag()] = array();
}
$this->items[$this->itemIndex][$this->getParentTag()][$this->currentTag] .= strip_tags($this->unhtmlentities((trim($data))));
return;
}
else
{
if(! in_array($this->currentTag, $this->hasSubTags))
{
$this->items[$this->itemIndex][$this->currentTag] .= strip_tags($this->unhtmlentities((trim($data))));
}
}
if(!empty($this->currentAttr))
{
$this->items[$this->itemIndex][$this->currentTag . '_ATTRS'] = $this->currentAttr;
//If the tag has no value
if(strlen($this->items[$this->itemIndex][$this->currentTag]) < 2)
{
//If there is only one attribute, assign the attribute value as feed element's value
if(count($this->currentAttr) == 1)
{
foreach($this->currentAttr as $attrVal)
{
$this->items[$this->itemIndex][$this->currentTag] = $attrVal;
}
}
//If there are multiple attributes, assign the attribute array as feed element's value
else
{
$this->items[$this->itemIndex][$this->currentTag] = $this->currentAttr;
}
}
}
}
}
/**
* Find out the feed version
*
* @access private
* @param string name of current tag
* @param array array of attributes
* @return void
*/
private function findVersion($tagName, $attrs)
{
$namespace = array_values($attrs);
foreach($this->namespaces as $value =>$version)
{
if(in_array($value, $namespace))
{
$this->version = $version;
return;
}
}
}
private function getParentTag()
{
return $this->insideItem[count($this->insideItem) - 2];
}
/**
* Detect if current position is in channel element
*
* @access private
* @return bool
*/
private function inChannel()
{
if($this->version == 'RSS 1.0')
{
if(in_array('CHANNEL', $this->insideItem) && $this->currentTag != 'CHANNEL')
return TRUE;
}
elseif($this->version == 'RSS 2.0')
{
if(in_array('CHANNEL', $this->insideItem) && !in_array('ITEM', $this->insideItem) && $this->currentTag != 'CHANNEL')
return TRUE;
}
elseif($this->version == 'ATOM 1')
{
if(in_array('FEED', $this->insideItem) && !in_array('ENTRY', $this->insideItem) && $this->currentTag != 'FEED')
return TRUE;
}
return FALSE;
}
/**
* Detect if current position is in Item element
*
* @access private
* @return bool
*/
private function inItem()
{
if($this->version == 'RSS 1.0' || $this->version == 'RSS 2.0')
{
if(in_array('ITEM', $this->insideItem) && $this->currentTag != 'ITEM')
return TRUE;
}
elseif($this->version == 'ATOM 1')
{
if(in_array('ENTRY', $this->insideItem) && $this->currentTag != 'ENTRY')
return TRUE;
}
return FALSE;
}
//This function is taken from lastRSS
/**
* Replace HTML entities &something; by real characters
*
*
* @access private
* @author Vojtech Semecky <webmaster@oslab.net>
* @link http://lastrss.oslab.net/
* @param string
* @return string
*/
private function unhtmlentities($string)
{
// Get HTML entities table
$trans_tbl = get_html_translation_table (HTML_ENTITIES, ENT_QUOTES);
// Flip keys<==>values
$trans_tbl = array_flip ($trans_tbl);
// Add support for ' entity (missing in HTML_ENTITIES)
$trans_tbl += array(''' => "'");
// Replace entities by values
return strtr ($string, $trans_tbl);
}
} //End class FeedParser
?>
|
