php数组循环遍历成1维数组并排重

[奔波在生活路上]

像这种数据，我想遍历成1维数组应该怎么写呢？

Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [uid] => 22
                    [username] => 13500000000
                    [bid] => 13
                )
            [1] => Array
                (
                    [uid] => 29
                    [username] => 13111111111
                    [bid] => 13
                )
        )
    [1] => Array
        (
            [0] => Array
                (
                    [uid] => 22
                    [username] => 13500000000
                    [bid] => 81
                )
            [1] => Array
                (
                    [uid] => 29
                    [username] => 13111111111
                    [bid] => 81
                )
            [2] => Array
                (
                    [uid] => 32
                    [username] => 13222222222
                    [bid] => 81
                )
        )
)

想变成这样

Array
(
          [0] => Array
                (
                    [uid] => 22
                    [username] => 13500000000
                    [bid] => 13
                )
            [1] => Array
                (
                    [uid] => 29
                    [username] => 13111111111
                    [bid] => 13
                )
            [2] => Array
                (
                    [uid] => 32
                    [username] => 13708064094
                    [bid] => 81
              )
 )

[qq_39047451]

循环数组 创建一个 数组 用 uid值.‘-’.username值.‘-’.bid值 为key 当前数组为balue 往这个新数组插入 或者isset再插 循环完,这个新数组直接array_values就是你要的数组

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[Stephen_112]

3维数组变成2维么

$arr = array(
	array(
		array(
			'uid' => 22,
			'username' => 13500000000,
			'bid' => 81
		),
		array(
			'uid' => 29,
			'username' => 13111111111,
			'bid' => 13
		)
	),
	array(
		array(
			'uid' => 22,
			'username' => 13500000000,
			'bid' => 81
		),
		array(
			'uid' => 29,
			'username' => 13111111111,
			'bid' => 81
		),
		array(
			'uid' => 32,
			'username' => 13222222222,
			'bid' => 81
		)
	),
);

$final = [];

foreach($arr as $value){
	foreach($value as $val){
		$final[] = $val;
	}
}

echo "<pre>";
print_r($arr);
echo "</pre>";

echo "<pre>";
print_r($final);
echo "</pre>";

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[Stephen_112]

Array ( [0] => Array ( [0] => Array ( [uid] => 22 [username] => 13500000000 [bid] => 81 ) [1] => Array ( [uid] => 29 [username] => 13111111111 [bid] => 13 ) ) [1] => Array ( [0] => Array ( [uid] => 22 [username] => 13500000000 [bid] => 81 ) [1] => Array ( [uid] => 29 [username] => 13111111111 [bid] => 81 ) [2] => Array ( [uid] => 32 [username] => 13222222222 [bid] => 81 ) ) ) Array ( [0] => Array ( [uid] => 22 [username] => 13500000000 [bid] => 81 ) [1] => Array ( [uid] => 29 [username] => 13111111111 [bid] => 13 ) [2] => Array ( [uid] => 22 [username] => 13500000000 [bid] => 81 ) [3] => Array ( [uid] => 29 [username] => 13111111111 [bid] => 81 ) [4] => Array ( [uid] => 32 [username] => 13222222222 [bid] => 81 ) )

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[奔波在生活路上]

谢谢各位大大解答，我自己捣鼓出来了

foreach ($list as $key => $value) {
		foreach ($value as $k => $v) {
                      if (in_array($v[$k]['uid'], $arrs)) {
				unset($arrs[$k]);
			} else {
				$arrs[$k] = $v;
			}

                }
}

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[下雨的声音丶]

var_dump(array_merge(...$arr));

这样就可以了 至于这个用法 需要PHP5.6+ 具体看看 https://www.php.net/manual/zh/functions.arguments.php#functions.variable-arg-list 示例 #10

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