PHP unique array by value()

1 개요

PHP unique_array_by_value()

$revisions = [
['user'=>'A','timestamp'=>'2018-01-15T10:55:04Z'],
['user'=>'B','timestamp'=>'2017-07-14T17:08:00Z'],
['user'=>'C','timestamp'=>'2016-12-27T05:48:18Z'],
['user'=>'B','timestamp'=>'2016-03-29T05:00:16Z'],
['user'=>'A','timestamp'=>'2015-09-28T08:06:25Z'],
];
$result = [];
foreach($revisions as $element) {
    $result[$element['user']] = $element;
}
$result = array_values($result);
print_r( $result );
# Array
# (
#     [0] => Array
#         (
#             [user] => A
#             [timestamp] => 2015-09-28T08:06:25Z
#         )
#     [1] => Array
#         (
#             [user] => B
#             [timestamp] => 2016-03-29T05:00:16Z
#         )
#     [2] => Array
#         (
#             [user] => C
#             [timestamp] => 2016-12-27T05:48:18Z
#         )
# )

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함수 unique_array_by_value()

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