Getting Content with RSS Feeds with PHP

Having RSS feeds will allow you to get fresh content from other websites without having to visit their websites. This will also be good for your website ranking as your pages will constantly be updated when ever the RSS feed site update their content, giving you free content which which you don't have to maintain.
Creating Our RSS script.

1. Create a file called rssfeed.php and save this.


2. Open the rssfeed.php file into your editor and copy the script below then save it.

<?php

$RSS_Content = array();

function RSS_Tags($item, $type)
{
$y = array();
$tnl = $item->getElementsByTagName("title");
$tnl = $tnl->item(0);
$title = $tnl->firstChild->data;

$tnl = $item->getElementsByTagName("link");
$tnl = $tnl->item(0);
$link = $tnl->firstChild->data;

$tnl = $item->getElementsByTagName("description");
$tnl = $tnl->item(0);
$description = $tnl->firstChild->data;

$y["title"] = $title;
$y["link"] = $link;
$y["description"] = $description;
$y["type"] = $type;

return $y;
}


function RSS_Channel($channel)
{
global $RSS_Content;

$items = $channel->getElementsByTagName("item");

// Processing channel

$y = RSS_Tags($channel, 0);      
array_push($RSS_Content, $y);

// Processing articles

foreach($items as $item)
{
$y = RSS_Tags($item, 1);  
array_push($RSS_Content, $y);
}
}

function RSS_Retrieve($url)
{
global $RSS_Content;

$doc  = new DOMDocument();
$doc->load($url);

$channels = $doc->getElementsByTagName("channel");

$RSS_Content = array();

foreach($channels as $channel)
{
RSS_Channel($channel);
}

}


function RSS_RetrieveLinks($url)
{
global $RSS_Content;

$doc  = new DOMDocument();
$doc->load($url);

$channels = $doc->getElementsByTagName("channel");

$RSS_Content = array();

foreach($channels as $channel)
{
$items = $channel->getElementsByTagName("item");
foreach($items as $item)
{
$y = RSS_Tags($item, 1);    // get description of article, type 1
array_push($RSS_Content, $y);
}

}

}


function RSS_Links($url, $size)
{
global $RSS_Content;

$page = "<ul>";

RSS_RetrieveLinks($url);
if($size > 0)
$recents = array_slice($RSS_Content, 0, $size);

foreach($recents as $article)
{
$type = $article["type"];
if($type == 0) continue;
$title = $article["title"];
$link = $article["link"];
$page .= "<li><a href=\"$link\">$title</a></li>\n";           
}

$page .="</ul>\n";

return $page;

}



function RSS_Display($url, $size)
{
global $RSS_Content;

$opened = false;
$page = "";

RSS_Retrieve($url);
if($size > 0)
$recents = array_slice($RSS_Content, 0, $size);

foreach($recents as $article)
{
$type = $article["type"];
if($type == 0)
{
if($opened == true)
{
$page .="</ul>\n";
$opened = false;
}
$page .="<b>";
}
else
{
if($opened == false)
{
$page .= "<ul>\n";
$opened = true;
}
}
$title = $article["title"];
$link = $article["link"];
$description = $article["description"];
$page .= "<li><a href=\"$link\">$title</a>";
if($description != false)
{
$page .= "<br>$description";
}
$page .= "</li>\n";           

if($type==0)
{
$page .="</b><br />";
}

}

if($opened == true)
{   
$page .="</ul>\n";
}
return $page."\n";

}


?>


3. Now to get the RSS Feeds showing on any of your .php pages, copy the code below and place this at the top of the page which you want the feeds to be shown on.
<?php
require_once("rssfeed.php");
echo RSS_Display("http://www.websitenohow.com/rss.xml", 25);
?>


note : you will need to change http://www.websitenohow.com/rss.xml to what ever your website rss feed is. The number after the url represent the amount of RSS feeds you would like to show.

 

credits to scriptol.