I'm experimenting with autoblogging (i.e., RSS-driven blog posting) using WordPress, and all that's missing is a component to automattically fill in the content of the post with the content that the RSS's URL links to (RSS is irrelevant to the solution).
Using standard PHP 5, how could I create a function called fetchHTML([URL]) that returns the HTML content of a webpage that's found between the <body>...</body> tags?
Please let me know if there are any prerequisite "includes". Thanks.
Assuming that it will always be <body> and not <BODY> or <body style="width:100%"> or anything except <body> and </body>, and with the caveat that you shouldn't use regex to parse HTML, even though I'm about to, here ya go:
<?php
function fetchHTML( $url )
{
$feed = '<body>Lots of stuff in here</body>';
$content = file_get_contents( $url );
preg_match( '/<body>([\s\S]{1,})<\/body>/m', $content, $match );
$content = $match[1];
return $content;
} // fetchHTML
?>
If you echo fetchHTML([some url]);, you'll get the html between the body tags.
Please note original caveats.
I think you're better of using a class like SimpleDom -> http://sourceforge.net/projects/simplehtmldom/ to extract the data as you don't need to write such complicated regular expressions
Okay, here's a DOM parser code example as requested.
<?php
function fetchHTML( $url )
{
$content = file_get_contents($url);
$html=new DomDocument();
$body=$html->getelementsbytagname('body');
foreach($body as $b){ $content=$b->textContent; break; }//hmm, is there a better way to do that?
return $content;
}