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array_intersect

(PHP 4 >= 4.0.1, PHP 5)

array_intersect — Computes the intersection of arrays

Descrierea

array array_intersect ( array $array1 , array $array2 [, array $ ... ] )

array_intersect() returns an array containing all the values of array1 that are present in all the arguments. Note that keys are preserved.

Parametri

array1

The array with master values to check.

array2

An array to compare values against.

array

A variable list of arrays to compare.

Valorile întroarse

Returns an array containing all of the values in array1 whose values exist in all of the parameters.

Exemple

Example#1 array_intersect() example

<?php
$array1 
= array("a" => "green""red""blue");
$array2 = array("b" => "green""yellow""red");
$result array_intersect($array1$array2);
print_r($result);
?>

Exemplul de mai sus va afiÅŸa:

Array
(
    [a] => green
    [0] => red
)

Note

Notă: Two elements are considered equal if and only if (string) $elem1 === (string) $elem2. In words: when the string representation is the same.


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