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PHP 去除数组的重复项

Jun 23, 2016 pm 01:05 PM

如何去掉数组里 id相同的项

Array(    [0] => Array        (             [id] => 2            [title] => 26        )    [1] => Array        (              [id] =>3            [title] => 28        )    [2] => Array        (             [id] => 2            [title] => 26        )    [3] => Array        (            [id] => 7            [title] => 25        )）

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最终结果

Array(    [0] => Array        (             [id] => 2            [title] => 26        )    [1] => Array        (              [id] =>3            [title] => 28        )    [3] => Array        (            [id] => 7            [title] => 25        )）

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$a = Array(  Array( 'id' => 2, 'title' => 26 ),  Array( 'id' => 3, 'title' => 28 ),  Array( 'id' => 2, 'title' => 26 ),  Array( 'id' => 7, 'title' => 25 ),);$res = array();foreach($a as $v) {  if(! isset($res[$v['id']])) $res[$v['id']] = $v;}print_r(array_values($res));

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Array(    [0] => Array        (            [id] => 2            [title] => 26        )    [1] => Array        (            [id] => 3            [title] => 28        )    [2] => Array        (            [id] => 7            [title] => 25        ))

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