Array
(
[0] => Array
(
[0] => user-
[1] => notice-
) [1] => Array
(
[0] => user-
[1] => calendar-
[2] => calendar-
) [2] => Array
(
[0] => notice-
[1] => calendar-
))
想要的效果Array([0]=>'user-notice',[1]=>'user-calendar-calendar',[2]=>'user-calendar')
(
[0] => Array
(
[0] => user-
[1] => notice-
) [1] => Array
(
[0] => user-
[1] => calendar-
[2] => calendar-
) [2] => Array
(
[0] => notice-
[1] => calendar-
))
想要的效果Array([0]=>'user-notice',[1]=>'user-calendar-calendar',[2]=>'user-calendar')
foreach( $arr as &$value)
$value = implode('-', $value);
foreach( $arr as &$value){
$value = implode('', $value);
// 截取字符串的最后一个 -
$value = substr($value, 0, -1);
}