根据第一个数组的位置重新排列Array中的单词。在我的代码中,有两个数组,我的第一个数组是基础数组,我将从中将其与第二个数组进行比较,并使位置与第一个数组相同。
以2个输入为基础,以1个输入为基础,我正在应用levenshtein(元音(每个单词数据库),元音(每个银行单词)),然后基于此将bankdata的单词排列在新数组中
databaseName = LAL BAHADUR SHASTRI
bankdata = SHASTRI LAL
源代码将仅重新排列bankdata并将其存储在bankdata : LAL SHASTRI
重新排列正确,只需要排列数组中的单词
$db = 'LAL BAHADUR SHASTRI YADAV';
$bank = 'SHASTRI LAL';
$a = reArrangeArray($db,$bank);
function reArrangeArray($db,$bank)
{
$dataBaseName = $db;
$bankdataRows = [$db,$bank,];
$dbWords = preg_split("#[\s]+#", $dataBaseName);
foreach ($bankdataRows as $bankdata)
{
$bankWords = preg_split("#[\s]+#", trim($bankdata));
$result = [];
if(!empty($bankWords))
foreach ($dbWords as $dbWord)
{
$idx = null;
$least = PHP_INT_MAX;
foreach ($bankWords as $k => $bankWord)
if (($lv = levenshtein(metaphone($bankWord),metaphone($dbWord))) < $least)
{
$least = $lv;
$idx = $k;
}
@$result[] = $bankWords[$idx];
unset($bankWords[$idx]);
}
$result = array_merge($result, $bankWords);
var_dump($result);
}
}
案例1:当前输出
array (size=4)
0 => string 'LAL' (length=3)
1 => string 'BAHADUR' (length=7)
2 => string 'SHASTRI' (length=7)
3 => string 'YADAV' (length=5)
array (size=4)
0 => string 'LAL' (length=3)
1 => string 'SHASTRI' (length=7)
2 => null
3 => null
预期产量
我需要与databaseArray相同的数组位置
$dbName = 'LAL BAHADUR SHASTRI YADAV';
$bankName = 'SHASTRI LAL';
array of db (size=4)
0 => string 'LAL' (length=3)
1 => string 'BAHADUR' (length=7)
2 => string 'SHASTRI' (length=7)
3 => string 'YADAV' (length=5)
array of bankname (size=4)
0 => string 'LAL' (length=3)
1 => #
2 => string 'SHASTRI' (length=7)
3 => ###
如果在第一个数组中未找到单词,则应将其放在#处,因为位置为3,而没有匹配元素,则其为3#
array (size=4)
0 => string 'LAL' (length=3)
1 => string 'BAHADUR' (length=7)
2 => string 'SHASTRI' (length=7)
3 => string 'YADAV' (length=5)
array (size=4)
0 => string 'LAL' (length=3)
1 => string 'SHASTRI' (length=7)
2 => null
3 => null
预期产量
我需要与databaseArray相同的数组位置
$dbName = 'LAL BAHADUR SHASTRI YADAV';
$bankName = 'SHARI LAL';
array of db (size=4)
0 => string 'LAL' (length=3)
1 => string 'BAHADUR' (length=7)
2 => string 'SHASTRI' (length=7)
3 => string 'YADAV' (length=5)
array of bankname (size=4)
0 => string 'LAL' (length=3)
1 => #
2 => string 'SHARI' (length=7)
3 => ###
这种情况将根据levenshtein(metaphone($bankWord),metaphone($dbWord))
案例2
输入:
$dbName = NikithaRani MohanRao $bankdata = Nikitha Rani Mohan Rao
Output : $newbankdata = NikithaRani MohanRao
如果在$ dbName中串联,则该单词应串联
注意
计算单词的位置,只需比较第一个数组即可在数组中移动单词
答案 0 :(得分:1)
我不确定我是否理解了整个问题,但让我们尝试仅解决重新排列数组的问题:
$a1 = explode(" ", "LAL BAHADUR SHASTRI YADAV");
// sort $a1 to whatever order you need
$a2 = explode(" ", "SHASTRI LAL");
foreach($a1 as $key => $e) { // for each element set him or fill with "#"
$res[$key] = in_array($e, $a2) ? $e : str_repeat("#", $key);
}
str-repeat与char重复了x
次。这段代码在O(n*m)
中运行-如果需要,可以将其修改为O(n)
(当n
是第一个数组中的元素数时)。
我希望能有所帮助,甚至可以随意发表评论
已编辑:
用于查找Levenshtein最小距离的第一个定义函数:
function foundLevenshteinMinIndex($word, $arr) {
$word = metaphone($word);
foreach ($arr as $k =>$e)
$a[] = levenshtein($word,metaphone($e));
return array_search(min($a), $a);
}
现在使用与$a1, $a2
相同的方式:
foreach($a2 as $w) {
$i = foundLevenshteinMinIndex($w, $a1);
if (!isset($res[$i]) || (levenshtein(metaphone($a1[$i]), metaphone($res[$i])) > levenshtein(metaphone($a1[$i]), metaphone($w))))
$res[$i] = $w;
}
for($i = 0; $i < count($a1); $i++)
if (!isset($res[$i])) // if not set in the index fill with "#'
$res[$i] = str_repeat("#", $i);
// rearrange by int indexs
ksort($res);
已编辑2
看看这个实现:
$a1 = explode(" ", 'LAL BAHADUR SHASTRI YADAV');
$a2 = explode(" ",'SHASTRI LAL NABA');
function getDist($a1, $a2) {
foreach($a2 as $k1 => $w1)
foreach($a1 as $k2 => $w2)
$arr[$k1][$k2] = levenshtein(metaphone($w1), metaphone($w2));
return $arr;
}
function getMin($arr) {
$min = PHP_INT_MAX;
$minX = $minY = null;
foreach($arr as $x => $row)
foreach($row as $y => $cell)
if ($cell < $min) {
$min = $cell;
$minX = $x;
$minY = $y;
}
return array($minX, $minY);
}
function removeIndex($arr, $x, $y) {
unset($arr[$x]);
foreach($arr as &$row)
unset($row[$y]);
return $arr;
}
$arr = getDist($a1, $a2);
while (count($arr) && count(reset($arr))) {
list($x, $y) = getMin($arr);
if (!isset($res[$y]))
$res[$y] = $a2[$x];
$arr = removeIndex($arr, $x, $y);
}
for($i = 0; $i < count($a1); $i++)
if (!isset($res[$i])) // if not set in the index fill with "#'
$res[$i] = str_repeat("#", $i);
ksort($res);
请注意,当O(n*(m^2))
是第一个数组而n
是第二个数组时,此代码的时间复杂度为m