配列から重複した値を削除するarray_unique()関数
array_unique()関数(配列から重複した値を削除する)
<?php $input = array("a" => "green", "red", "b" => "green", "blue", "red"); $result = array_unique($input); print_r($result); ?> Array ( [a] => green [0] => red [1] => blue ) ?>
<?php $input = array("a" => "green", "red", "b" => "green", "blue", "red"); $result = array_unique($input); print_r($result); ?> Array ( [a] => green [0] => red [1] => blue ) ?>