Small php function requested

I am new to php and am trying to write a program. I need help with converting strings. Could some please help me write a function to turn this type of code:

<span class="navigation_end"><a href="/5-computers">Computers</a> > <a href="/6-bluetooth-adaptor">Bluetooth Adapter</a> > </span>

in to this:
Computers > Bluetooth Adapter

I have the pusado/java code for it but i need someone to translate it to php

publie String toText(String html){
boolean a = false; boolean b = false;
string toRet;
while (html.length() != 0){
if (!a) {
if(next two chars of html != "<a")
delete them;
else
a = ture;
}
else
{
if(next two chars of html = "</")
add ">" to toRet;
a = true;
else
add char to toRet;
}
return toRet;
}

 

just do

echo '<span class="navigation_end"><a href="/5-computers">Computers</a> > <a href="/6-bluetooth-adaptor">Bluetooth Adapter</a> > </span>'

Code (markup):

 

I dont want to print it out, I need the refined text for another step in the program.

 

function string_to_text($string){
preg_match_all("/\<a(.*)\>(.*)\<\/a\>/iU", $string, $matches, PREG_SET_ORDER);
foreach($matches as $match){
$res .= "{$match[2]} &gt; ";
}
return substr($res,0,strlen($res)-6);
}

$new_var = string_to_text($links);

PHP:

 

I tried to test the code and it gives an error. I think there is something wrong with in the pattern but i cant figure it out.

http://codepad.org/57KqFEtN

 

i found this: http://drupal.org/node/17271 its the same error, i dont know if thats your case

it work fine on my computer

PHP Version 5.2.6

PCRE (Perl Compatible Regular Expressions) Support 	enabled
PCRE Library Version 	7.6 2008-01-28 

Code (markup):

i think your php dont have pcre support, and i dont know what to do in that case sorry