<?php
 
$text = '[quote=Mod;3]Whats up?[/quote][/quote]';
$text = preg_replace('~\[quote=.*?\](.*)\[/quote\]~i', '<b>$1</b>', $text);
print $text;
 
print "\n\n";
 
$text = 'And I said [quote=Mod;3] Hey Hey Hey Hey, Hey Hey Hey.[/quote] I said Hey! [quote=Mod;3]Whats going on?[/quote][/quote] 25 years of my life is still [quote=Mod;3]trying to get up that great big hill[/quote] of hope[/quote].';
 
$text = preg_replace('~\[quote=.*?\](.*?)\[/quote\](?!\[/quote\])~i', '<b>$1</b>', $text);
$text = preg_replace('~\[/quote\]~i', '', $text);
print $text;

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