PHP implementation to remove duplicate data from an array

This article mainly introduces the PHP implementation to remove repeated data from an array. It has certain reference value. Now I share it with you. Friends in need can refer to

php implementation to remove an array. Duplicate data in!

$arr = $arr;//有重复字段的数组
$repet_arr = array_diff_assoc($arr,array_unique($arr));

It can be used for personal testing!

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