array_diff_ukey
Description
The array_diff_ukey of Array for PHP computes the difference of arrays using a callback function on the keys for comparison.
Syntax
array_diff_ukey( array $array, array ...$arrays, callable $key_compare_func ): array
Parameters
array
The array to compare from.
arrays
The arrays to compare against.
key_compare_func
The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
callback( mixed $a, mixed $b ): int
Return
Returns an array containing all the entries from array that are not present in any of the other arrays.
Examples
1 · array arrays · one · key_compare_func
<? function mycallback($mya, $myb) { return $mya <=> $myb; } $array = [ "a" => 0, "b" => 1, "c" => 2, "d" => 3 ]; $arrays = [ "a" => 0, "b" => 4, "e" => 2, "f" => 5 ]; $key_compare_func = "mycallback"; $return = array_diff_ukey($array, $arrays, $key_compare_func); print_r($return);
Array ( [c] => 2 [d] => 3 )
2 · array arrays · multiple · key_compare_func
<? function mycallback($mya, $myb) { return $mya <=> $myb; } $array = [ "a" => 0, "b" => 1, "c" => 2, "d" => 3 ]; $arrays1 = [ "a" => 0, "b" => 4, "e" => 2, "f" => 5 ]; $arrays2 = [ "a" => 0, "b" => 4, "e" => 2, "f" => 5 ]; $key_compare_func = "mycallback"; $return = array_diff_ukey($array, $arrays1, $arrays2, $key_compare_func); print_r($return);
Array ( [c] => 2 [d] => 3 )
Links
Related
Array
- array
- array_all
- array_any
- array_change_key_case
- array_chunk
- array_column
- array_combine
- array_count_values
- array_diff
- array_diff_assoc
- array_diff_key
- array_diff_uassoc
- array_fill
- array_fill_keys
- array_filter
- array_find
- array_find_key
- array_flip
- array_intersect
- array_intersect_assoc
- array_intersect_key
- array_intersect_uassoc
- array_intersect_ukey
- array_key_exists
- array_key_first
- array_key_last
- array_keys
- array_map
- array_merge
- array_merge_recursive
- array_multisort
- array_pad
- array_pop
- array_product
- array_push
- array_rand
- array_reduce
- array_replace
- array_replace_recursive
- array_reverse
- array_search
- array_shift
- array_slice
- array_splice
- array_sum
- array_udiff
- array_udiff_assoc
- array_udiff_uassoc
- array_uintersect
- array_uintersect_assoc
- array_uintersect_uassoc
- array_unique
- array_unshift
- array_values
- array_walk
- array_walk_recursive
- arsort
- asort
- compact
- count
- current
- end
- extract
- in_array
- key
- key_exists
- krsort
- ksort
- list
- natcasesort
- natsort
- next
- pos
- prev
- range
- reset
- rsort
- shuffle
- sizeof
- sort
- uasort
- uksort
- usort