比较两个数组中的元素，在同类指标相互

我有两个数组有相同数目的成员（总是）的$userInputArr=array("z","z","E","z","z","E","E","E","E","E");和$user2InputArr=array("a","a","a","z","a","E","E","E","a","E");我知道如何找到匹配成员在两个数组。这里我想找到具有相似索引的匹配元素，例如如果$ userInputArr [4] == $ user2InputArr [4]，则增加$匹配。在我下面的尝试中，我通过两个数组循环，但我无法获得$匹配增量。比较两个数组中的元素，在同类指标相互

$match = 0; 
for ($c =0; $c < count($$userInputArr); $c++) { 
    for ($d = $c; $d<count($user2InputArr);$d++) { 
     if ($userAnsStrArr[$c] == $userInputArr[$d]) { 
      $match = $match +1; 
     } 
    } 
}

来源

2017-08-14 jimiss

“foreach”会不会更适合？ – Script47

@ Script47我也尝试了一个foreach循环，没有成功 – jimiss

在这里嵌套两个循环是无稽之谈。你想循环访问数组中的_one_，并在访问另一个数组时访问对应的元素。 – CBroe

这个问题是PHP函数array_intersect_assoc()一个很好的例子：

$array1 = array("z","z","E","z","z","E","E","E","E","E"); 
$array2 = array("a","a","a","z","a","E","E","E","a","E"); 

// Find the matching pairs (key, value) in the two arrays 
$common = array_intersect_assoc($array1, $array2); 
// Print them for verification 
print_r($common); 

// Count them 
$match = count($common); 
echo($match." common items.\n");

输出是：

Array 
(
    [3] => z 
    [5] => E 
    [6] => E 
    [7] => E 
    [9] => E 
) 
5 common items.

来源

2017-08-14 10:39:54 axiac

因此，减免在臃肿的页面上看到明智的答案。没有知情的PHP开发人员会做任何事情，除此之外！ – mickmackusa

$match = 0; 
for ($c =0; $c < count($$userInputArr); $c++) { 

    if ($userAnsStrArr[$c] == $userInputArr[$c]) { 
      $match = $match +1; 
     } 

}

你应该做的是这样的。

来源

2017-08-14 10:30:37 d3no

'count（$$ userInputArr）'上有一个输入错误，它阻止了它的工作。此外，我会迭代，直到两个数组的较小长度，以避免在第二个数组比第一个数组短时触发通知。 – axiac

这对我的作品

$i = sizeof($userInputArr); 

$match = 0; 
for($j = 0; $j < $i; $j++) 
    if ($userInputArr[$j] == $user2InputArr[$j]) { 
     $match = $match +1; 
    }

来源

2017-08-14 10:35:13

'sizeof'可能会与别的东西混淆，所以最好使用'count'。 – Script47

我将'$ i'设置为两个数组的较小长度，以避免在第二个数组比第一个数组短的情况下触发通知。 – axiac

在这种情况下“我有两个成员数相同的数组（总是）”。我简化了它。我是新的在stackoverflow。 –

下面是代码您。只需使用一个foreach，穿越的第一array，并且在第二array检查为key-value。

$s = array("z","z","E","z","z","E","E","E","E","E"); 
$b = array("a","a","a","z","a","E","E","E","a","E"); 

foreach($s as $k => $v) { 
    if($b[$k] === $s[$k]) { 
     echo $k . ' is the index where keys and values exactly match with value as ' . $b[$k]; 
    } 
}

输出：

3 is the index where keys and values exactly match with value as z 
5 is the index where keys and values exactly match with value as E 
6 is the index where keys and values exactly match with value as E 
7 is the index where keys and values exactly match with value as E 
9 is the index where keys and values exactly match with value as E

这里是链接：https://3v4l.org/eX0r4

来源

2017-08-14 10:41:04

我看来你的代码并不需要两个for循环增加比赛中的单圈见下面的代码。

<?php 
$userInputArr=array("z","z","E","z","z","E","E","E","E","E"); 
$user2InputArr=array("a","a","a","z","a","E","E","E","a","E"); 
$match = 0; 
for ($c =0; $c < count($userInputArr); $c++) { 
    if ($user2InputArr[$c] == $userInputArr[$c]) { 
     $match = $match + 1; 
    } 
} 
echo $match; 
?>

来源

2017-08-14 10:49:48

比较两个数组中的元素，在同类指标相互

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