php数组过滤重置键名功能

$imgurl_str="||https://www.111cn.net|https://www.111cn.net|https://www.111cn.net";
$imgurl_arr = explode ( "|", $imgurl_str );
$imgurl_arr =array_filter($imgurl_arr);
print_r($imgurl_arr);
$imgurl_arr = array_values($imgurl_arr);
print_r($imgurl_arr);
/*

Array

(

[2] => https://www.111cn.net

[3] => https://www.111cn.net

[4] => https://www.111cn.net

)

Array

(

[0] => https://www.111cn.net

[1] => https://www.111cn.net

[2] => https://www.111cn.net

)

*/

?>