当我尝试获取并解析Indian Express rss feed时，发生以下错误。
遇到PHP错误 严重性：警告
消息：非法字符串偏移＆＃39;内容＆＃39;
文件名：libraries / rssparser.php（114）：eval（）＆＃39; d代码
行号：1遇到PHP错误 严重性：警告
消息：非法字符串偏移＆＃39;编码＆＃39;
文件名：libraries / rssparser.php（114）：eval（）＆＃39; d代码
行号：1遇到PHP错误 严重性：警告
消息：非法字符串偏移＆＃39;内容＆＃39;
文件名：libraries / rssparser.php（114）：eval（）＆＃39; d代码
行号：1
我正在使用rssparser库
rssparser.php
<?PHP
// Original PHP code by Chirp Internet: www.chirp.com.au
// Please acknowledge use of this code by including this header.
class rssparser
{
// keeps track of current and preceding elements
var $tags = array();
// array containing all feed data
var $output = array();
// return value for display functions
var $retval = "";
var $errorlevel = 0;
// constructor for new object
function rssparser1($file)
{
$errorlevel = error_reporting();
error_reporting($errorlevel & ~E_NOTICE);
// instantiate xml-parser and assign event handlers
$xml_parser = xml_parser_create("");
xml_set_object($xml_parser, $this);
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "parseData");
// open file for reading and send data to xml-parser
$data = preg_match("/^http/", $file) ? file_get_contents($file) : file_get_contents($file);
//print_r($data);
xml_parse($xml_parser, $data) or die(
sprintf("Airtel: Error <b>%s</b> at line <b>%d</b><br>",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser))
);
// dismiss xml parser
xml_parser_free($xml_parser);
error_reporting($errorlevel);
}
function startElement($parser, $tagname, $attrs=array())
{
// RSS 2.0 - ENCLOSURE
if($tagname == "ENCLOSURE" && $attrs) {
$this->startElement($parser, "ENCLOSURE");
foreach($attrs as $attr => $attrval) {
$this->startElement($parser, $attr);
$this->parseData($parser, $attrval);
$this->endElement($parser, $attr);
}
$this->endElement($parser, "ENCLOSURE");
}
// Yahoo! Media RSS - images
if($tagname == "MEDIA:CONTENT" && $attrs['URL'] && $attrs['MEDIUM'] == 'image') {
$this->startElement($parser, "IMAGE");
$this->parseData($parser, $attrs['URL']);
$this->endElement($parser, "IMAGE");
}
// check if this element can contain others - list may be edited
if(preg_match("/^(RDF|RSS|CHANNEL|IMAGE|ITEM)/", $tagname)) {
if($this->tags) {
$depth = count($this->tags);
if(is_array($tmp = end($this->tags))) {
list($parent, $num) = each($tmp);
if($parent) $this->tags[$depth-1][$parent][$tagname]++;
}
}
array_push($this->tags, array($tagname => array()));
} else {
if(!preg_match("/^(A|B|I)$/", $tagname)) {
// add tag to tags array
array_push($this->tags, $tagname);
}
}
}
function endElement($parser, $tagname)
{
if(!preg_match("/^(A|B|I)$/", $tagname)) {
// remove tag from tags array
array_pop($this->tags);
}
}
function parseData($parser, $data)
{
// return if data contains no text
if(!trim($data)) return;
$evalcode = "\$this->output";
foreach($this->tags as $tag) {
if(is_array($tag)) {
list($tagname, $indexes) = each($tag);
$evalcode .= "[\"$tagname\"]";
if(${$tagname}) $evalcode .= "[" . (${$tagname} - 1) . "]";
if($indexes) extract($indexes);
} else {
if(preg_match("/^([A-Z]+):([A-Z]+)$/", $tag, $matches)) {
$evalcode .= "[\"$matches[1]\"][\"$matches[2]\"]";
} else {
$evalcode .= "[\"$tag\"]";
}
}
}
eval("$evalcode = $evalcode . '" . addslashes($data) . "';");
}
// display a single channel as HTML
function display_channel($data, $limit)
{
extract($data);
if(@$IMAGE) {
// display channel image(s)
foreach($IMAGE as $image) $this->display_image($image);
}
if(@$TITLE) {
// display channel information
$this->retval .= "<h1>";
if($LINK) $this->retval .= "<a href=\"$LINK\" target=\"_blank\">";
$this->retval .= stripslashes($TITLE);
if($LINK) $this->retval .= "</a>";
$this->retval .= "</h1>\n";
if($DESCRIPTION) $this->retval .= "<p>$DESCRIPTION</p>\n\n";
$tmp = array();
if(@$PUBDATE) $tmp[] = "<small>Published: $PUBDATE</small>";
if(@$COPYRIGHT) $tmp[] = "<small>Copyright: @$COPYRIGHT</small>";
if($tmp) $this->retval .= "<p>" . implode("<br>\n", $tmp) . "</p>\n\n";
$this->retval .= "<div class=\"divider\"><!-- --></div>\n\n";
}
if($ITEM) {
// display channel item(s)
foreach($ITEM as $item) {
$this->display_item($item, "CHANNEL");
if(is_int($limit) && --$limit <= 0) break;
}
}
}
// display a single image as HTML
function display_image($data, $parent="")
{
extract($data);
if(!$URL) return;
$this->retval .= "<p>";
if($LINK) $this->retval .= "<a href=\"$LINK\" target=\"_blank\">";
$this->retval .= "<img src=\"$URL\"";
if(@$WIDTH && $HEIGHT) $this->retval .= " width=\"$WIDTH\" height=\"$HEIGHT\"";
$this->retval .= " border=\"0\" alt=\"$TITLE\">";
if($LINK) $this->retval .= "</a>";
$this->retval .= "</p>\n\n";
}
// display a single item as HTML
function display_item($data, $parent)
{
extract($data);
//print_r($data);
//exit;
if(!$TITLE) return;
$this->retval .= "<p><b>";
if($LINK) $this->retval .= "<a href=\"$LINK\" target=\"_blank\">";
$this->retval .= stripslashes($TITLE);
if($LINK) $this->retval .= "</a>";
$this->retval .= "</b>";
if(!$PUBDATE && $DC["DATE"]) $PUBDATE = $DC["DATE"];
if($PUBDATE) $this->retval .= " <small>($PUBDATE)</small>";
$this->retval .= "</p>\n";
// use feed-formatted HTML if provided
if(@$CONTENT['ENCODED']) {
$this->retval .= "<p>" . stripslashes(@$CONTENT['ENCODED']) . "</p>\n";
} elseif($DESCRIPTION) {
if(@$IMAGE) {
foreach($IMAGE as $IMG) $this->retval .= "<img src=\"$IMG\">\n";
}
$this->retval .= "<p>" . stripslashes($DESCRIPTION) . "</p>\n\n";
}
// RSS 2.0 - ENCLOSURE
if(@$ENCLOSURE) {
$this->retval .= "<p><small><b>Media:</b> <a href=\"{$ENCLOSURE['URL']}\">";
@$this->retval .= $ENCLOSURE['TYPE'];
@$this->retval .= "</a> ({$ENCLOSURE['LENGTH']} bytes)</small></p>\n\n";
}
if(@$COMMENTS) {
$this->retval .= "<p style=\"text-align: right;\"><small>";
$this->retval .= "<a href=\"$COMMENTS\">Comments</a>";
$this->retval .= "</small></p>\n\n";
}
}
function fixEncoding(&$input, $key, $output_encoding)
{
if(!function_exists('mb_detect_encoding')) return $input;
$encoding = mb_detect_encoding($input);
switch($encoding)
{
case 'ASCII':
case $output_encoding:
break;
case '':
$input = mb_convert_encoding($input, $output_encoding);
break;
default:
$input = mb_convert_encoding($input, $output_encoding, $encoding);
}
}
// display entire feed as HTML
function getOutput($limit=false, $output_encoding='UTF-8')
{
$this->retval = "";
$start_tag = key($this->output);
switch($start_tag)
{
case "RSS":
// new format - channel contains all
foreach($this->output[$start_tag]["CHANNEL"] as $channel) {
$this->display_channel($channel, $limit);
}
break;
case "RDF:RDF":
// old format - channel and items are separate
if(isset($this->output[$start_tag]['IMAGE'])) {
foreach($this->output[$start_tag]['IMAGE'] as $image) {
$this->display_image($image);
}
}
foreach($this->output[$start_tag]['CHANNEL'] as $channel) {
$this->display_channel($channel, $limit);
}
foreach($this->output[$start_tag]['ITEM'] as $item) {
$this->display_item($item, $start_tag);
}
break;
case "HTML":
die("Error: cannot parse HTML document as RSS");
default:
die("Error: unrecognized start tag '$start_tag' in getOutput()");
}
if($this->retval && is_array($this->retval)) {
array_walk_recursive($this->retval, 'myRSSParser::fixEncoding', $output_encoding);
}
//return $this->retval;
//echo $this->output[$start_tag]['IMAGE'];
return $this->output[$start_tag]["CHANNEL"];
}
// return raw data as array
function getRawOutput($output_encoding='UTF-8')
{
array_walk_recursive($this->output, 'myRSSParser::fixEncoding', $output_encoding);
return $this->output;
}
}
?>