php数组遍历

$url = array('新浪'=>'www.sina.com',

                   '雅虎'=>'www.yahoo.com',

                   '网易'=>'www.163.com',

                   '腾讯'=>'www.qq.com',

                   '百度'=>'www.baidu.com'

               );

foreach ( $url as $site => $link ) {

  echo "<a href=http://$link>$site</a><br><br>";

}