列出並計數數組php中的元素

Question

我有以下數組，並試圖用php遍歷它，生成“類型”列表並計算數量。 “類型”是關鍵，但是會有唯一的值，例如“呼叫”，“待辦事項”，“會議”，“提案”等。我的目標是提供以下各項：

Call 2
To-do 1
Meeting 3
Proposal 4

上面的不是從以下數組輸出的值，但是我希望您對我要完成的事情有所了解。 請幫忙！

Array (
    [0] => Array (
        [0] => Call
        [Type] => Call
        [1] => fxxxx@xxxxentllc.com
        [EmailAddress] => xxxxr@xxxxentllc.com
        [2] => 3xxxx00
        [Phone] => 31xxxx00
        [3] => 31xxxx871
        [MobilePhone] => 31xxxx871
        [4] => 102795
        [CustomerID] => 102795
        [5] => Nortxxxxal
        [Company] => Noxxxxal
        [6] => Frank
        [FirstName] => Frank
        [7] => Syxxxxer
        [LastName] => Sxxxxter
        [8] => 3
        [Priority] => 3
        [9] => invite to Haxxxxales for lunch
        [Details] => invite to Hafxxxxales for lunch
        [10] => 4503
        [ActivityID] => 4503
        [11] => 05/23/13
        [DueDate] => 05/23/13
    )
    [1] => Array (
        [0] => To-do
        [Type] => To-do
        [1] => fsxxxxer@summxxxxntllc.com
        [EmailAddress] => fsxxxxer@summixxxxtllc.com
        [2] => 315xxxx000
        [Phone] => 3154xxxx0
        [3] => 315xxxx1
        [MobilePhone] => 315xxxx1
        [4] => 102795
        [CustomerID] => 102795
        [5] => Norxxxxl
        [Company] => Norxxxxcal
        [6] => Frxxxxk
        [FirstName] => Fxxxxk
        [7] => Sxxxxr
        [LastName] => Syxxxxer
        [8] => 3
        [Priority] => 3
        [9] => find out who contact is for xxxxdical center
        [Details] => find out who contact is foxxxxcal center
        [10] => 4504
        [ActivityID] => 4504
        [11] => 05/23/13
        [DueDate] => 05/23/13
    )
)

Answer 1

應該這樣做：

$type_counts = array_count_values(array_map(function($x) {return $x['Type'];}, $array));

array_map將返回一個包含所有Type元素的數組，然后array_count_values將計算每個元素的數量並將其作為關聯數組返回。

Answer 2

類似於以下內容：

foreach ($array as $key => $value) {
 if (isset($result[$key])) {
  $result[$key]++;
 } else {
 $result[$key] = 1;
 }
}

如果它是多維數組，則在其中每個數組都放一個，但這應該可以給你一個思路

Answer 3

$types = array();
foreach($array as $item) {
    isset(${$item['Type']}) ? ${$item['Type']}++ : ${$item['Type']} = 1;
    if(!in_array($item['Type'], $types) {
        $types[] = $item['Type'];
}
foreach($types as $type) {
    echo "$type ${$type}\n";
}

Answer 4

我認為您可以循環使用數組並計算每次出現的次數

$Call = 0;
$To_do = 0;
$Meeting = 0;
$Proposal = 0;
foreach($array as $data)
{
    if($data['Type'] == 'Call')
    {
        $Call++;
    } else if($data['Type'] == 'To-do')
    {
        $To_do++;
    } else if($data['Type'] == 'Meeting')
    {
        $Meeting++;
    } else if($data['Type'] == 'Proposal')
    {
        $Proposal++;
    }
}

這樣，您將在每個變量$Call $To_do $Meeting $Proposal其相對計數

Answer 5

您可以使用（array_count_values（$ array））; http://php.net/manual/en/function.array-count-values.php這給出了數組中所有鍵的計數。

如果只需要特定的鍵，則使用foreach循環

提到的一種Petros是最好的方法。

Answer 6

我會按照以下方式做一些事情：

$your_array = /* Your Array */
$types_count = array();
foreach ($your_array as $type_array){
    $types_count[$type_array['Type']]++;
}