$str ='<div class="classrightcon"><table border="0" cellpadding="0" cellspacing="0" width="100%"><td  Height="25">·<a  target="_bla
nk"  href="/g/2006-11/16/16-50-16-426-8557.html">888888888</a><td><td align="Right"<td></tr><table></div>';
preg_match("/<a.*?href=\"(.*?)\">/i",$str,$m);
echo "$m[1] \n"