Reiterating regular expressions searches

[nuvolenji]

I am trying to write a script that reads basketball results from yahoo. I am able to get the script finding the first result using the following regexp

$searchstring="<tr align=right valign=top><td align=left width=80%><a href=/nba/teams/([a-z]{3})/>([a-z]+)</a> at<br><a href=/nba/teams/([a-z]{3})/>([a-z]+)</a></td><td width=10%>([0-9]{2,3})<br>([0-9]{2,3})</td><td width=10%>([a-z]+)</td></tr>";

eregi($searchstring, $content, $regs);

so, the array $regs contains all the various chunks of regexps interspersed in $searchstring.
what I don't get is why the search stops after finding just one match. the pattern in $searchstring is the same for all the games, I am wondering how to reiterate the search in such a way that the pattern is found as many times as is present in the actual html page.

[nuvolenji]

sorry for the unnecessary confusion in the previous post.
let's take a very simple case:

<?
$string="titutatitattdti";
$searchstring="(t.)";
eregi($searchstring, $string, $regs);
while (list($key, $value) = each ($regs))

{

echo ($key." - ".$value);
}
?>

What I get out of it is just 'ti' instead of what I want, an array with ti tu ta ti ta tt ti. (t.)* I get 'tt' for reasons I totally fail to understand...