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Ubbcode

04.09.2005
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        a function to convert common used bbcode tags to html... as usually used in message boards and some blog software.

it handles img, email, link, b, u and i tags...

for example
[b]test[/b]
[url=http://blah.com]blah[/url]
will become:
<strong>test</strong>
<a href="http://blah.com" target="_blank">blah</a>

function ubbcode($posting) {
	$posting=eregi_replace("\[img\]([^\[]+)\[/img\]","<img src=\"\\1\" border=\"0\">",$posting);
	$posting=eregi_replace("\[email\]([^\[]+)\[/email\]","<a href=\"mailto:\\1\">\\1</a>",$posting);
	$posting=eregi_replace("\[email=([^\[]+)\]([^\[]+)\[/email\]","<a href=\"mailto:\\1\">\\2</a>",$posting);
	$posting=eregi_replace("\[url=([^\[]+)\]([^\[]+)\[/url\]","<a href=\"\\1\" target=\"_blank\">\\2</a>",$posting);
	$posting=eregi_replace("\[url\]([^\[]+)\[/url\]","<a href=\"\\1\" target=\"_blank\">\\1</a>",$posting);
    $posting=eregi_replace("\[b\]","<strong>",$posting);
    $posting=eregi_replace("\[/b\]","</strong>",$posting);
    $posting=eregi_replace("\[u\]","<u>",$posting);
    $posting=eregi_replace("\[/u\]","</u>",$posting);
    $posting=eregi_replace("\[i\]","<em>",$posting);
    $posting=eregi_replace("\[/i\]","</em>",$posting);

    return $posting;
}