Php数组反向删除

Question

I need to delete the values inside the array that are before the given variable and store in the same key, thanks in advance.

$filter = 8;

Array
(
    [1] => 
    [2] => 
    [3] => 
    [4] => 
    [5] => 
    [6] => 
    [7] => 
    [8] => 
    [9] => 
    [10] => 
    [11] => 
    [13] => PHM
    [14] => PHN
    [15] => N
    [17] => M9
    [18] =>

)

My output should be,

Array(
    [8] => 
    [9] => 
    [10] => 
    [11] => 
    [13] => PHM
    [14] => PHN
    [15] => N
    [17] => M9
    [18] =>
) 

Answer 1

You can use array_slice() to do this. Now since you don't have a 0-based enumerated array, you have to make sure to set the preserve_keys parameter to true:

print_r(array_slice($table_list, $filter, NULL, TRUE));