From RSS into multiple sql statements

Question

Hi all, I'm trying to import RSS into my database for this I
created an XSLT
stylesheet that transforms the XML into a series of SQL
statements like
below
INSERT INTO rss_feed(feed_title,feed_link,feed_description)
VALUES('','
http://...','');
SELECT @feed_id := MAX(feed_id) FROM rss_feed;
INSERT INTO
rss_channel(feed_id,channel_title,channel_link,channel_description,channel_language,chann el_copyright,channel_managingeditor,channel_webmaster,channel_pubdate,channel_lastbuilddat e,channel_generator,channel_docs,channel_cloud,channel_ttl,channel_image,channel_rating,ch annel_skiphours,channel_skipdays)
VALUES(@feed_id,'...','...','','','','','','','','','','','','','','','');
SELECT @channel_id := MAX(channel_id) FROM rss_channel;
INSERT INTO
rss_item(channel_id,item_title,item_link,item_description,item_author,item_comments,item_ guid,item_pubdate)
VALUES(@channel_id,'...','','...','Joris van Lier','','','');
SELECT @item_id := MAX(item_id) FROM rss_item;
INSERT INTO
rss_enclosure(item_id,enclosure_url,enclosure_type,enclosure_length)
VALUES(@item_id,'
http://...','...','...');
My problem is: I can pipe this into a command-line sql
session but when
executing it from PHP it gives me a sql syntax error, running
the statements
separately does not preserve the needed context with the
foreign key
variables.
Second problem: how do I select the last inserted id in
MySQL; is there an
equivalent to @@IDENTITY?
mysql Ver 14.7 Distrib 4.1.13, for unknown-linux-gnu (x86_64)
using
readline 4.3
Joris van Lier

Answer 1

"David Powers" <[email protected]> wrote in message
news:fhrnou$j4g$[email protected]..
> Joris van Lier wrote:
>> I'm stuck with the standard MySQL extension in php,
>> however I noticed that phpMyAdmin reports the
following
>> MySQL client version: 4.1.13
>> Used PHP extensions: mysql <- notice there's NO
mysqli here,
>
> Have you checked phpinfo()? phpMyAdmin decides which
extension to use
> based on the settings in config.inc.php. If mysqli isn't
enabled, it
> sounds as though your server is still running PHP 4. If
so, that's crazy.
> Support for PHP 4 ends on December 31. It's time to
demand that your
> hosting company upgrades to PHP 5.2.
>
>> but it can execute my query
>> How do they do that?
>
> I have no idea how phpMyAdmin does it. I presume that it
uses explode() to
> separate the queries into an array, using the semicolon
as the separator.
> You can then loop through the array to execute each
query independently.
There's no mysqli support on this server, phpMyAdmin has an
internal parser
that splits the queries and tries to handle delimiters in
strings, and then
uses mysql_unbuffered_query or mysql_query, so it seems that
using one of
these functions with multiple consecutive queries preserves
the context of
the previous query.
Using explode will split strings that contain a semicolon,
I'm now trying
to escape the semicolons in strings to avoid writing my own
parser, so far
I've been thinking about HEXing them, but hexing complete
input will
seriously hurt my ability to read the queries, the
alternative CONCAT('foo',
0x3b, 'bar') still isn't pretty.
Do you know if it's possible to embed hexed characters into
strings (without
introducing a semicolon)?
Joris