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Re: [PHP3] Multiple RegExp replace From: Alfred Perlstein (bright <email protected>)
Date: 05/01/00

* Nicholas Pappas <nick <email protected>> [000501 08:34] wrote:
> Hello all!
>
> I am trying to write up a little parser that will go through and
> replace multiple occurances of variable (ie: it changes) string in a large
> message block.
> Specifically, it looks for "http://[a-z.]*" and putts a HREF
> tag around it, so that it is linked without typing the HREF in manually.
>
> Here is what I have right now:
>
> <?php
> $string = "This is a string with a http://link.com and a
> http://second.com";
>
> eregi("(http://[a-z.]*)", $string, $regs);
>
> $newstr = eregi_replace("(http://[a-z.]*)", "<A
> HREF=\"$regs[1]\">$regs[1]</A>", $string);
>
> echo $string
> ?>
>
> The obvious trouble with this is that it links all the hyperlinks
> to "http://link.com" (the first matched expression).
>
> I am wondering how (if possible) I can set this up to replace all
> the links properly.
> Is there a running variable (like '$_' in PERL) that I can use?

something like this:

$string = eregi_replace("(http://[a-z.]*)",
        "<A HREF=\"\\0\">\\0</A>", $string);

if \\0 doesn't work, use \\1

-Alfred 

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