求PHP数组最大值,最小值的代码

<?php 
$fruits = array("155::vbscript::http://www.jb51.net/list/list_114_1.htm", "1::javascript::http://www.jb51.net/list/list_3_1.htm", "2::正则表达式::http://www.jb51.net/list/list_6_1.htm", "3::服务器常用软件::http://s.jb51.net"); 
print_r($fruits); 
rsort($fruits,SORT_NUMERIC); 
print_r($fruits); 
?>

显示结果：

Array
(
[0] => 155::vbscript::http://www.jb51.net/list/list_114_1.htm
[1] => 1::javascript::http://www.jb51.net/list/list_3_1.htm
[2] => 2::正则表达式::http://www.jb51.net/list/list_6_1.htm
[3] => 3::服务器常用软件::http://s.jb51.net
)
Array
(
[0] => 155::vbscript::http://www.jb51.net/list/list_114_1.htm
[1] => 3::服务器常用软件::http://s.jb51.net
[2] => 2::正则表达式::http://www.jb51.net/list/list_6_1.htm
[3] => 1::javascript::http://www.jb51.net/list/list_3_1.htm
)