取得2個陣列的交集函式 array_intersect
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<?php $array1 = array("a" => "green", "red", "blue"); $array2 = array("b" => "green", "yellow", "red"); $result = array_intersect($array1, $array2); ?> |
$result會得到
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Array ( [a] => green [0] => red ) |