PHP array to repeat data sample _php instance

Duplicate data that begins with a number, such as:

Copy Code code as follows:

Array (
[0] => 100
[K1] => 100
[1] => 2123
[K2] => 2123)

This method can take the value of the number as key to remove, first the array in reverse order, and then use the Array_unique method to remove the duplicate value.
Cannot apply to situations where the same value exists for different key values

Copy Code code as follows:

function Array_unique_value ($arr = Array ()) {
Array_multisort ($arr, Sort_desc, Array_keys ($arr));
Print_r (Array_unique ($arr));
}