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Problems with str_replace

Hi,

I'm trying to automatically update an existing rss podcast file using
php and the str_replace function.
Every time I add a media file, it should read the .rss file into a
string, take the closing </channel> and </rss> tags out of it, and add
the new rss file info to the end of the existing string, writing it
back to the rss file. However, str_replace will not replace the
</channel> and </rss> tags with ' '. I'm new to php, any help would be
appreciated.

Start Code:
----------------
$xmlFile = "/home2/kingshar/public_html/podcast_test.rs s";
$xmlReadHandle = fopen($xmlFile, 'r') or die("Cannot open podcast
file");
$xmlFileContent s = fread($xmlReadH andle, filesize($xmlFi le));
fclose($xmlFile );
//Search and delete closing rss tag
str_replace('</rss>', '', $xmlFileContent s);
//Search and delete closing channel tag
str_replace('</channel>', '', $xmlFileContent s);

//Write existing data and new data to xml file

$newxmlFileCont ents = $xmlFileContent s.
"\n<title>".$st itle."</title>\n<itunes :author>Author' s
Name</itunes:author>\ n<description>" .$scripture."</description>\n< pubDate>".$stor e_sdate."</pubDate>\n<gui
isPermaLink=fal se>".$audioFile ."</guid>\n<enclosu re url=".$audioFil e .
$audioSize ."type=audio/mpeg
/>\n<itunes:expl icit>clean</itunes:explicit >\n</item>\n\n</channel>\n</rss>";
$xmlWriteHandle = fopen($xmlFile, 'w') or die("Cannot open podcast
file");
fwrite($xmlWrit eHandle, $newxmlFileCont ents);
fclose($xmlFile );

Apr 14 '06 #1
1 1678
Hello

Unless I'm missing something, I think the problem is that you are not
capturing the output of str_replace(). It does not modify the string
in-place; it returns the modified version of the string. So, instead
of:

str_replace('</rss>', '', $xmlFileContent s);
str_replace('</channel>', '', $xmlFileContent s);

do:

$xmlFileContent s = str_replace('</rss>', '', $xmlFileContent s);
$xmlFileContent s = str_replace('</channel>', '', $xmlFileContent s);

HTH

-Kurt

ma**********@gm ail.com wrote:
Hi,

I'm trying to automatically update an existing rss podcast file using
php and the str_replace function.
Every time I add a media file, it should read the .rss file into a
string, take the closing </channel> and </rss> tags out of it, and add
the new rss file info to the end of the existing string, writing it
back to the rss file. However, str_replace will not replace the
</channel> and </rss> tags with ' '. I'm new to php, any help would be
appreciated.

Start Code:
----------------
$xmlFile = "/home2/kingshar/public_html/podcast_test.rs s";
$xmlReadHandle = fopen($xmlFile, 'r') or die("Cannot open podcast
file");
$xmlFileContent s = fread($xmlReadH andle, filesize($xmlFi le));
fclose($xmlFile );
//Search and delete closing rss tag
str_replace('</rss>', '', $xmlFileContent s);
//Search and delete closing channel tag
str_replace('</channel>', '', $xmlFileContent s);


Apr 16 '06 #2

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