Kazi array_intersect_ukey

Kazi array_intersect_ukey inakubali arrays kadhaa na kazi ya callback kwa kulinganisha funguo zake. Kwenye kigezo cha kwanza hupewekwa array kuu, na kwenye mfululizo - arrays za kulinganisha. Kigezo cha mwisho hupewekwa kazi ya callback, ambayo inapaswa kulinganisha funguo na kurudisha nambari kamili (kidogo, sawa au kubwa kuliko sifuri).

Sintaksia

array_intersect_ukey(array $array1, array $array2, ..., callable $key_compare_func): array

Mfano

Linganisha funguo za arrays mbili kwa kutumia kazi ya mtumiaji:

<?php
	$array1 = ['a' => 1, 'b' => 2, 'c' => 3];
	$array2 = ['a' => 4, 'c' => 5, 'd' => 6];
	
	$res = array_intersect_ukey($array1, $array2, function($key1, $key2) {
		return strcmp($key1, $key2);
	});
	
	print_r($res);
?>

Matokeo ya utekelezaji wa kodi:

['a' => 1, 'c' => 3]

Mfano

Kulinganisha funguo za arrays tatu kwa usikivu kwa herufi kubwa na ndogo:

<?php
	$array1 = ['A' => 1, 'B' => 2, 'C' => 3];
	$array2 = ['a' => 4, 'B' => 5, 'C' => 6];
	$array3 = ['A' => 7, 'B' => 8, 'c' => 9];
	
	$res = array_intersect_ukey($array1, $array2, $array3, function($key1, $key2) {
		return strcmp($key1, $key2);
	});
	
	print_r($res);
?>

Matokeo ya utekelezaji wa kodi:

['B' => 2]

Angalia pia

kazi array_intersect,
ambayo inakokotoa makutano ya arrays kwa kutumia thamani
kazi array_intersect_key,
ambayo inakokotoa makutano ya arrays kwa kutumia funguo
kazi array_uintersect,
ambayo inakokotoa makutano ya arrays na kazi ya callback kwa kulinganisha thamani