Re: PHP function inside a regex - possible?

Aaarrrrgh!! Don't you always get the most problems when it's urgent?! Running a substantial block of text through this (about 2000+ characters) doesn't seem to make any change to the text at all. So, my question now, is: how can I modify the regex to modify every bolded term throughout the entire text, and is there a size limit on a string being put through a regex? If there is, how can I get round it without having to physically split it up into sections, which will be very messy as I would have to ensure that it wasn't split in the middle of <B> or </B> tag? thanks, - Kev kev wrote: > This isn't giving the desired results though when there is more than one term > to be modified, eg with this string: > > $text = "Turn <B>term 1</B> and <B>term 2</B> to a link"; > > It turns everything in between the first <B> and the last </B> into a link! > > How do I guard against that, but ensure that it still modifies every bolded > term? > > thanks, > > - Kev > > Andreas Pour wrote: > > > Hi, Kevin, > > > > As to your example, you have to have the replacement string be suitable > > for an "echo" statement, I think. The following works, anyway: > > > > $newtext = preg_replace("/(<B>(.*)<\/B>)/e", "\"<A > > href=\" . '\\2' . > > \"><B>\" . > > '\\2' . \"</B></A>\"", $text ); > > > > Good luck, > > > > Andreas > > > > kev wrote: > > > > > > Zak McGregor wrote: > > > > > > > In php 3.x, no. In php 4.x try: > > > > preg_replace("/<B>(.*)?<\/B>/", "<A > > > > > > > > HREF=\"whatever.php3?search=".urlencode('\\1')."\">".'\\1'."<\/A>"); > > > > > > > > > > I'm using PHP4. > > > I don't understand how that could work, how will it know what '\\1' is > > > in the urlencode() ? The function has not even been entered at that > > > point, so surely urlencode('\\1') will just equate literally to > > > '\\1' > > > urlencode()ed. > > > > > > Anyway, I tried this little example as a starting point to build up to > > > the full thing eventually: > > > > > > $text = "Turn <B>bold</B> to a link"; > > > > > > $newtext = preg_replace( "/<B>(.*)?<\/B>/e", > > > "<A href=\\1><B>\\1</B></A>", > > > $text ); > > > > > > echo "\$text = $text<BR>"; > > > echo "\$newtext = $newtext<BR>"; > > > > > > Please try this example, and you'll see it doesn't work. Can you see > > > what's wrong with it? > > > Also, is question mark (?) needed? > > > In Perl, I use $1 for a back-reference, is \\1 the PCRE equivalent? > > > > > > thanks, > > > > > > - Kev > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > > > For additional commands, e-mail: php-general-help@lists.php.net > > > To contact the list administrators, e-mail: php-list-admin@lists.php.net > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > > For additional commands, e-mail: php-general-help@lists.php.net > > To contact the list administrators, e-mail: php-list-admin@lists.php.net > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net