Question

我正在尝试计算数组$new_result_months中的重复键，删除它们并使用匹配键更新$new_result_users的值。如果我要做一个array_combine，每个键都应匹配该值。我真的尝试过，但没有想到一个版本。

$new_result_months = array(  
                        'Dec 2013',
                        'Jan 2014',
                        'Feb 2014',
                        'Mar 2014',
                        'Apr 2014',
                        'May 2014',
                        'Jun 2014',
                        'Jul 2014',
                        'Aug 2014',
                        'Sep 2014',
                        'Oct 2014', 
                        'Oct 2014', // remove one duplicate key and keep unique one
                        'Nov 2014', 
                        'Nov 2014', // remove one duplicate key and keep unique one
                        'Nov 2014', // remove one duplicate key and keep unique one
                        'Dec 2014'
                    );
$new_result_users = array(
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          1,
                          0,
                          1,
                          1,
                          0
                    );

预期输出

$new_result_months = array(  
                        'Dec 2013',
                        'Jan 2014',
                        'Feb 2014',
                        'Mar 2014',
                        'Apr 2014',
                        'May 2014',
                        'Jun 2014',
                        'Jul 2014',
                        'Aug 2014',
                        'Sep 2014',
                        'Oct 2014',
                        'Nov 2014',
                        'Dec 2014'
                    );

$new_result_users = array(
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          0,
                          1,  // needs to match with month oct 2014 and update it to 1
                          2, // needs to match with month nov 2014 and update it to 2
                          0
                    );

Answer 1

首先，您使用array_count_values计算重复值：

$aux = array_count_values($new_result_months);

新创建的数组$aux将具有以下值：

['Dec 2013'] => 1
['Jan 2014'] => 1
['Feb 2014'] => 1
['Mar 2014'] => 1
['Apr 2014'] => 1
['May 2014'] => 1
['Jun 2014'] => 1
['Jul 2014'] => 1
['Aug 2014'] => 1
['Sep 2014'] => 1
['Oct 2014'] => 2 
['Nov 2014'] => 3
['Dec 2014'] => 1

然后，使用foreach循环，您可以创建所需的新数组：

foreach($aux as $key => $value) {
    $new_result_months[] = $key;
    $new_result_users[] = $value;
}

计算1个数组的重复键并更新第二个数组的匹配值

1 个答案: