如何从PHP中的数组中删除重复/包含

debugcn 发表于 Dev

柴瓦乔

我在php中设置了数组。我需要从下面的代码中删除重复/包含记录。

Array ( 
    [0] => Array ( [percent] => 88.461538461538 [basenum] => 079 [code] => HL [group] => 0 )
    [1] => Array ( [percent] => 88.461538461538 [basenum] => 097 [code] => HL [group] => 0 )
    [2] => Array ( [percent] => 88.461538461538 [basenum] => 709 [code] => HL [group] => 0 )
    [3] => Array ( [percent] => 88.461538461538 [basenum] => 790 [code] => HL [group] => 0 )
    [4] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => HL [group] => 0 )
    [5] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => TL [group] => 0 ) // This will not removed because of 'code' different in array
    [6] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => HL [group] => 1 ) // This will not removed because of 'group' different in array
))

元素 1、2、3、4、5 将被删除，因为basenum包含在元素 0 中。所以预期的结果/新数组应该是

Array (
    [0] => Array ( [percent] => 88.461538461538 [basenum] => 079 [code] => HL [group] => 0 ) 
    [1] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => TL [group] => 0 )
    [2] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => HL [group] => 1 )
)

谢谢大家的回答。

缺口

由于basenum如果值包含相同的字符集，则它们是等效的，因此此代码将执行您想要的操作。通过对每个值中的字符进行排序并比较结果数组来compare_basenum检查两个basenum值是否相同。在循环中，我们查看具有匹配 basenum 的所有值，并查看codeorgroup值是否相同，如果不相同，我们将该值添加到输出中。

function compare_basenum($b1, $b2) {
    $b1 = str_split($b1);
    sort($b1);
    $b2 = str_split($b2);
    sort($b2);
    return $b1 === $b2;
}

$newdata = array();
foreach ($data as $d) {
    $matching_basenums = array_filter($newdata, function ($v) use ($d) { return compare_basenum($v['basenum'], $d['basenum']); });
    if (!count($matching_basenums) || 
        !in_array($d['code'], array_column($matching_basenums, 'code')) || 
        !in_array($d['group'], array_column($matching_basenums, 'group'))) {
        $newdata[] = $d;
    }
}
print_r($newdata);

输出（基于以下 OP 评论的更新数据）：

Array ( 
    [0] => Array ( [percent] => 88.461538461538 [basenum] => 079 [code] => HL [group] => 8 )
    [1] => Array ( [percent] => 88.461538461538 [basenum] => 709 [code] => HL [group] => 0 )
    [2] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => TL [group] => 0 )
    [3] => Array ( [percent] => 88.461538461538 [basenum] => 907 [code] => HL [group] => 1 ) 
)

3v4l.org 上的演示

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