somme Tableau de valeur basée sur une même touche

Question

j'ai mes données de tableau comme indiqué ci-dessous:

Array ( 
    [0] => Array ([name] => Bank BRI [amount] => 0) 
    [1] => Array ([name] => Bank BRI [amount] => 0) 
    [2] => Array ([name] => Bank BCA [amount] => 1412341234) 
    [3] => Array ([name] => Bank CIMB Niaga [amount] => 532532552) 
    [4] => Array ([name] => Bank BRI [amount] => 34534534) 
    [5] => Array ([name] => Bank CIMB Niaga [amount] => 453425243) 
    [6] => Array ([name] => Bank BRI [amount] => 0) 
    [7] => Array ([name] => Bank BNI [amount] => 124124) 
    [8] => Array ([name] => Bank CIMB Niaga [amount] => 352345623) 
    [9] => Array ([name] => Bank BCA [amount] => 23432423) 
    [10] => Array ([name] => Bank Mandiri [amount] => 0) 
    [11] => Array ([name] => Bank BCA [amount] => 0) 
    [12] => Array ([name] => Bank BCA [amount] => 0) 
    [13] => Array ([name] => Bank Permata [amount] => 352352353) 
) 

Comment résumer « montant » sur la base même « nom de la banque ».

Mes données devraient montré comme ceci:

Bank BRI........... with '*total amount*' 
Bank BCA........... with '*total amount*' 
Bank CIMB NIAGA.... with '*total amount*' 
Bank BNI........... with '*total amount*' 
Bank Mandiri....... with '*total amount*' 
Bank Permata....... with '*total amount*' 

Answer 1

<?php 

// array of bank structure 
$banks = array(); 
$banks[] = array('name'=>'Bank BRI','amount'=>rand()); 
$banks[] = array('name'=>'Bank BRI','amount'=>rand()); 
$banks[] = array('name'=>'Bank BCA','amount'=>rand()); 
$banks[] = array('name'=>'Bank CIMB','amount'=>rand()); 
$banks[] = array('name'=>'Bank BRI','amount'=>rand()); 
$banks[] = array('name'=>'Bank CIMB','amount'=>rand()); 
$banks[] = array('name'=>'Bank BRI','amount'=>rand()); 
$banks[] = array('name'=>'Bank BNI','amount'=>rand()); 
$banks[] = array('name'=>'Bank CIMB','amount'=>rand()); 
$banks[] = array('name'=>'Bank BCA','amount'=>rand()); 
$banks[] = array('name'=>'Bank Mandiri','amount'=>rand()); 
$banks[] = array('name'=>'Bank BCA','amount'=>rand()); 
$banks[] = array('name'=>'Bank BCA','amount'=>rand()); 
$banks[] = array('name'=>'Bank Permata','amount'=>rand()); 

// begin the iteration for grouping bank name and calculate the amount 
$amount = array(); 
foreach($banks as $bank) { 
    $index = bank_exists($bank['name'], $amount); 
    if ($index < 0) { 
     $amount[] = $bank; 
    } 
    else { 
     $amount[$index]['amount'] += $bank['amount']; 
    } 
} 
print_r($amount); //display 

// for search if a bank has been added into $amount, returns the key (index) 
function bank_exists($bankname, $array) { 
    $result = -1; 
    for($i=0; $i<sizeof($array); $i++) { 
     if ($array[$i]['name'] == $bankname) { 
      $result = $i; 
      break; 
     } 
    } 
    return $result; 
} 

Answer 2

Exemple en C#:

Dictionary<string,object>[] items = { 
    new Dictionary<string, object> {{ "name", "Bank BRI"}, {"amount", 0 }}, 
    new Dictionary<string, object> {{ "name", "Bank BRI"}, {"amount", 0 }}, 
    new Dictionary<string, object> {{ "name", "Bank BCA"}, {"amount", 1412341234 }}, 
    new Dictionary<string, object> {{ "name", "Bank CIMB Niaga"}, {"amount", 532532552 }} 
}; 

var amounts = new Dictionary<string, int>(); 

foreach (var item in items) { 
    string bank = (string)item["name"]; 
    int amount = (int)item["amount"]; 
    if (amounts.ContainsKey(bank)) { 
    amounts[bank] += amount; 
    } else { 
    amounts.Add(bank, amount); 
    } 
} 

foreach (var amount in amounts) { 
    Console.WriteLine("{0}: {1}", amount.Key, amount.Value); 
} 

Answer 3

$a = arrayofindonesianbanks; 

foreach ($a as $anarrays) { 
     echo "$anarrays[name]." ".$anarrays[amount]"; 
    } 
} 

voir foreach en php.

Answer 4

Donc, vous avez d'abord besoin de $amountsArray pour obtenir les valeurs que vous avez listées. Puis:

$bankTotals = array(); 
foreach($amountsArray as $amount) 
{ 
    $bankTotals[$amount['name']] += $amount['amount']; 
} 

Après cela, $bankTotals est un tableau indexé sur le nom de la banque, avec la valeur du montant total de la banque. Vous pouvez utiliser ce tableau comme vous le souhaitez d'ici.

Une chose qui pourrait être utile est une autre boucle foreach pour imprimer tout sur:

foreach($bankTotals as $name => $amount) 
{ 
    echo $name.".....".$amount."\n"; 
} 

Answer 5

Je préfère ajouter

$bankTotals = array(); 
foreach($amountsArray as $amount) 
{ 
if(isset($bankTotals[$amount['name']])) 
    $bankTotals[$amount['name']] += $amount['amount']; 
else 
    $bankTotals[$amount['name']] = $amount['amount']; 
}