php RSS to HTML code

[nick]

Here is a small piece of code that helps to fetch the RSS feeds from a given URL and parse it into HTML output.

<?php
set_time_limit(0);
//Enter the URL of RSS feed in the line below
$file = "PUT YOUR RSS FEEDS URL HERE";
$rss_channel = array();
$currently_writing = "";
$main = "";
$item_counter = 0;
function startElement($parser, $name, $attrs) {
global $rss_channel, $currently_writing, $main;
switch($name) {
case "RSS":
case "RDF:RDF":
case "ITEMS":
$currently_writing = "";
break;
case "CHANNEL":
$main = "CHANNEL";
break;
case "IMAGE":
$main = "IMAGE";
$rss_channel["IMAGE"] = array();
break;
case "ITEM":
$main = "ITEMS";
break;
default:
$currently_writing = $name;
break;
}
}
function endElement($parser, $name) {
global $rss_channel, $currently_writing, $item_counter;
$currently_writing = "";
if ($name == "ITEM") {
$item_counter++;
}
}
function characterData($parser, $data) {
global $rss_channel, $currently_writing, $main, $item_counter;
if ($currently_writing != "") {
switch($main) {
case "CHANNEL":
if (isset($rss_channel[$currently_writing])) {
$rss_channel[$currently_writing] .= $data;
} else {
$rss_channel[$currently_writing] = $data;
}
break;
case "IMAGE":
if (isset($rss_channel[$main][$currently_writing])) {
$rss_channel[$main][$currently_writing] .= $data;
} else {
$rss_channel[$main][$currently_writing] = $data;
}
break;
case "ITEMS":
if (isset($rss_channel[$main][$item_counter][$currently_writing])) {
$rss_channel[$main][$item_counter][$currently_writing] .= $data;
} else {
$rss_channel[$main][$item_counter][$currently_writing] = $data;
}
break;
}
}
}
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
if (!($fp = fopen($file, "r"))) {
die("could not open XML input");
}
while ($data = fread($fp, 4096)) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),  
xml_get_current_line_number($xml_parser)));
}
}
xml_parser_free($xml_parser);
// output HTML
if (isset($rss_channel["ITEMS"]))
{
echo "<font face='Verdana' size='2' color='#333333'>";
if (count($rss_channel["ITEMS"]) > 0)
{
for($i = 0;$i < count($rss_channel["ITEMS"]);$i++)
{
if (isset($rss_channel["ITEMS"][$i]["LINK"]))
{
echo "<a href=\"" . $rss_channel["ITEMS"][$i]["LINK"] . "\">" . 
$rss_channel["ITEMS"][$i]["TITLE"] . "</a><br>";
}
else
{
echo $rss_channel["ITEMS"][$i]["TITLE"];
}
echo $rss_channel["ITEMS"][$i]["DESCRIPTION"] . "<p>&nbsp;</p>";
}
}
else
{
echo "<b>There are no articles in this feed.</b>";
}
echo "</font>";
}
?>

The above code is not mine. But it is a free code to use. You will be able to convert the RSS into HTML with this code.

 

[jignesh]

Thanks nick,
this is really nice script as i m learning PHP it will help me to know some new feature of PHP.
i have copied it and will take a look of it.

 

[nick]

In real it is using fsockopen to fetch the file.

Using arrays to store the data fetched from the file and then loops to walk through that array.