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Caching an XML feed

If you're using PHP to add a newsfeed to your site, please be kind to the news feed supplier and cache the feed if your page is a popular one. I posted a couple of weeks ago ... a link to a piece of code that grabs a news feed .... and I've enhanced it now to do the caching. Here's the modified code:

$feed = "http://thescotsman.scotsman.com/uk.cfm?format=rss";
$copy = 1;
if (time() - @filemtime("haggis.xml") < 120) {
$feed = "haggis.xml";
$copy = 0;
}

$fh = fopen($feed,"r");
if ($copy) $saver = fopen("haggis.xml","w");
while ($xmlcontent = fread($fh,1024)) {
if ($copy) fputs($saver,$xmlcontent);
xml_parse($parser,$xmlcontent,feof($fh));
}

Links ...
Previous posting
Original full source code listing
Running Script

(written 2005-08-26, updated 2008-05-17)

 
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The Melksham train - a button is pushed
Robust checking of data entered by users
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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