提取重複項，並在php數組中出現多少次

Question

我正在開發一個用戶驅動的電子商務網站，需要一些幫助。我擁有的是一個函數，它將通過一個數組循環移除重複項以及它發生的次數。然後，我需要在每次提取的重複項上運行一個函數，並多次執行。我到目前爲止的代碼有效，但當有多個具有相同重複計數的重複項時會中斷。這裏是我曾經嘗試這樣做

if(count($array_unique) - count($match_count_unique) == 1) // do something 

或

if(count($array_unique) != count($match_count_unique) == 1) // do something 

到目前爲止，我所做的代碼..

$affiliates = array(11,11,12,12,13,13,13,14,14,14,14); //breaks the code 
$affiliates = array(11,11,13,13,13,14,14,14,14,12,12,12,12,12); // works fine 

$array = array(); 
$match_count = array(); 

    foreach($affiliates as $key => $affiliate) { 
     $array[] = $affiliate; 
    } 

    arsort($array); // keeps array index in order 

    foreach($array as $arrays) { 
     if(array_value_count($arrays,$array) > 1) { 
      $match_count[] = array_value_count($arrays,$array); 
     } 
    } 

    $match_count = array_unique($match_count); 

    $array_unique = arrayDuplicate($array); 

    $final_array = array_combine($match_count,$array_unique); 

    foreach($final_array as $key => $value) { 
     for($i = 0; $i < $key; $i++) { 
      echo 'addOrder(affiliate_id = ' . $value . ') . '<br>'; 
     } 
    } 

功能

function unique_array($array) { 
     return array_unique($array, SORT_NUMERIC); 
    } 

    function arrayDuplicate($array) { 
     return array_unique(array_diff_assoc($array,array_unique($array))); 
    } 

    function array_value_count($match, $array) { 
    $count = 0; 

    foreach ($array as $key => $value) 
    { 
     if ($value == $match) 
     { 
      $count++; 
     } 
    } 

    return $count; 
    } 

修復重複破譯密碼

我怎麼知道在哪裏正確添加缺少的重複值計數和數組項目，而不會使它們不同步？或者有更好的方法來做到這一點？

Answer 1

從How do I count occurrence of duplicate items in array

$array = array(12,43,66,21,56,43,43,78,78,100,43,43,43,21); 
$vals = array_count_values($array); 
echo 'No. of NON Duplicate Items: '.count($vals).'<br><br>'; 
print_r($vals); 

結果採取

No. of NON Duplicate Items: 7 

Array 
(
[12] => 1 
[43] => 6 
[66] => 1 
[21] => 2 
[56] => 1 
[78] => 2 
[100] => 1 
) 

重複項=（數組大小） - （總唯一值的數量）

Answer 2

<?php 
$affiliates = array(11,11,12,12,13,13,13,14,14,14,14); 

// get an array whose keys are the aff# and 
//the values are how many times they occur 
$dupes = array(); 
foreach ($affiliates as $aff) { 
    $dupes[$aff]++; 
} 
// remove the 1's since those aren't dupes 
$dupes = preg_grep('~^1$~',$dupes,PREG_GREP_INVERT); 

// de-dupe the original array 
$affiliates = array_unique($affiliates); 

// for each duped affiliate... 
foreach ($dupes as $aff => $affCount) { 
    // for each time it was duped.. 
    for ($c=0;$c<$affCount;$c++) { 
    // do something. $aff is the aff# like 11 
    } 
} 
?>