Using sockets: Getting Articles from newsgroups (iii)

Reading articles
Now that we've got the article number for the last article, it's easy to read the last 10 articles. RFC977 says the article command can use either the article number or its message ID.
Here to note that the article number is different from its message ID because each news server assigns its own article number, so the number of the same article on two different servers is not the same, and the message ID of the article is included in the header information of the article and is unique.

<?php
$cfgLimit = 10;

Upload last Articles

$boucle = $last-$cfgLimit;

while ($boucle <= $last) {
Set_time_limit (0);
Fputs ($usenet _handle, "ARTICLE $bouclen");

$article = "";
$tmp =fgets ($usenet _handle, 4069);
if (substr ($tmp, 0, 3)!= "220") {
echo "+----------------------+n";
echo "Error on article $bouclen";
echo "+----------------------+n";
}
else {
while ($tmp!= ". Rn") {
$tmp = fgets ($usenet _handle, 4096);
$article. = $tmp;
}

echo "+----------------------+n";
echo "Article $bouclen";
echo "+----------------------+n";
echo "$articlen";
}

$boucle + +;
}

?>

We read the last 10 articles from this newsgroup in the server. You can also read the header information of an article by using the Head command, or read the contents of the article using the Body command.

Close connection
Finally, close the socket by calling the Fclose () function to end the conversation with the NNTP server.

<?php
Close connection
Fclose ($usenet _handle);
?>
For more information about fclose (), refer to the http://www.php.net/manual/function.fclose.php

Conclusion
In the above, we saw how to open, use, and then close a socket: Connect to an NNTP server and retrieve some articles. Using post commands to publish an article is less complicated.
The next step is to write a web-based newsgroup client.
Storing these articles and indexing them with a search engine (such as http://www.htdig.org) is also very easy. In this way, you have a web-based search newsgroup program.
An example of such a program can be obtained in http://www.phpindex.com/ng/.