array_intersect_uassocarray_intersect_ukey
(PHP 5 >= 5.1.0)
array_intersect_ukey — Computes the intersection of arrays using a callback function on the keys for comparison
Opis
array_intersect_ukey() returns an array containing all the values of array1 which have matching keys that are present in all the arguments.
This comparison is done by a user supplied callback function. It must return an integer less than, equal to, or greater than zero if the first key is considered to be respectively less than, equal to, or greater than the second.
Parametry
- array1
-
Initial array for comparison of the arrays.
- array2
-
First array to compare keys against.
- array
-
Variable list of array arguments to compare keys against.
- key_compare_func
-
User supplied callback function to do the comparison.
Zwracane wartości
Returns the values of array1 whose keys exist in all the arguments.
Przykłady
Przykład #1 array_intersect_ukey() example
<?php
function key_compare_func($key1, $key2)
{
if ($key1 == $key2)
return 0;
else if ($key1 > $key2)
return 1;
else
return -1;
}
$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8);
var_dump(array_intersect_ukey($array1, $array2, 'key_compare_func'));
?>
Powyższy przykład wyświetli:
array(2) {
["blue"]=>
int(1)
["green"]=>
int(3)
}
In our example you see that only the keys 'blue' and 'green' are present in both arrays and thus returned. Also notice that the values for the keys 'blue' and 'green' differ between the two arrays. A match still occurs because only the keys are checked. The values returned are those of array1 .
Zobacz też:
- array_diff() - Zwraca różnice pomiędzy tablicami
- array_udiff() - Computes the difference of arrays by using a callback function for data comparison
- array_diff_assoc() - Oblicza różnicę między tablicami z dodatkowym sprawdzaniem kluczy
- array_diff_uassoc() - Computes the difference of arrays with additional index check which is performed by a user supplied callback function
- array_udiff_assoc() - Computes the difference of arrays with additional index check, compares data by a callback function
- array_udiff_uassoc() - Computes the difference of arrays with additional index check, compares data and indexes by a callback function
- array_diff_key() - Oblicza różnicę tablic używając kluczy do porównań
- array_diff_ukey() - Oblicza różnicę tablic używając funkcji zwrotnej do porównywania kluczy
- array_intersect() - Zwraca przecięcie tablic
- array_intersect_assoc() - Wylicza przecięcie tablic z dodatkowym sprawdzaniem indeksów
- array_intersect_uassoc() - Computes the intersection of arrays with additional index check, compares indexes by a callback function
- array_intersect_key() - Computes the intersection of arrays using keys for comparison
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