TalkPHP - preg_replace limit results

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oMIKEo

04-09-2008 10:02 AM

preg_replace limit results

Hi,

I want to extract the value between [SiteName] from $postText and save it as $s_sitename. Is preg_replace the best way to do this?

Here is what i have so far:

PHP Code:


		
			
$pattern[0] = "/\[SiteName\](.*)\[\/SiteName\]/";

$replace[0] = "$1";

$s_sitename = preg_replace($pattern, $replace, $postText);

At the moment i get the sitename but it then shows all the other text in $postText.

Thanks!

Wildhoney

04-09-2008 12:00 PM

PHP Code:


		
			
$postText = 'Hello [SiteName]TalkPHP[/SiteName]!';
preg_match_all('~\[SiteName\](.+?)\[/SiteName\]~i', $postText, $matches);

echo '<pre>';
print_r($matches);
echo '</pre>';

oMIKEo

04-09-2008 02:25 PM

Thanks Wildhoney,

Using your bit of code and 2 mins on php.net i found exactly what i needed :)

oMIKEo

11-12-2008 04:07 PM

Noticed a slight problem now, if there is a return in the middle of the 2 SiteNotes it doesnt display anything. Here is what i have so far:

PHP Code:


		
			
$postText = $row["post_text"];

preg_match_all('~\[SiteNotes\](.+?)\[/SiteNotes\]~i', $postText, $s_SiteNotes);

Any ideas how to make it find matches even if there is a return in the middle?

Thanks,
Mike

Salathe

11-12-2008 04:11 PM

Add the s modifier after the i at the end of the pattern: ~\[SiteNotes\](.+?)\[/SiteNotes\]~is This turns on the PCRE_DOTALL flag so that . includes newlines.

oMIKEo

11-13-2008 10:38 AM

That worked perfectly - thank you.

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