<a> </a> arası aldırmak...

$deneme="<p><a target=_blank href=\"3.htm\">linkisim 1</a><br><a href=\"4.htm\">linkisim 2</a></p><br><b>";

linkisim 1
linkisim 2

preg_match_all("|<a .*>(.*)</a>|U",$deneme,$matches);
print_r($matches[1]);

<?
$satir	="<p><a target=_blank href=\"3.htm\">linkisim 1</a><br><a href=\"4.htm\">linkisim 2</a></p><br><b>";  
$parrent= "/<a target=_blank href=\"(.*?).htm\">(.*?)<\/a>/is";
preg_match_all($parrent, $satir, $matches,PREG_SET_ORDER);
$link 	= trim($matches[0][1]);
$yazi	= trim($matches[0][2]);
$link	= addslashes($link);
$yazi	= addslashes($yazi);
echo"$link - $yazi";
?>

preg_match_all("|<a .*>(.*)</a>|U",$deneme,$matches);
$link1 = $matches[1][0];
$link2 = $matches[1][1];
echo "$link1 $link2";

for($i=0;$i<count($matches[1]);$i++) {
$link[$i] = $matches[1][$i];
echo "Link ".($i+1)." : ".$link[$i];
}