有一個(gè)像這樣的數(shù)組..Array( [1] => Array ( [0] => Order Number [1] => Item 1 Colour [2] => Buyer Name [3] => Item 1 Name [4] => Item 1 Variation ) [2] => Array ( [0] => Order Number [1] => Item 1 Colour [2] => Buyer Name [3] => Item 1 Name [4] => Item 1 Variation [5] => Order Number [6] => Item 2 Colour [7] => Buyer Name [8] => Item 2 Name [9] => Item 2 Variation ) [3] => Array ( [0] => Order Number [1] => Item 1 Colour [2] => Buyer Name [3] => Item 1 Name [4] => Item 1 Variation [5] => Order Number [6] => Item 2 Colour [7] => Buyer Name [8] => Item 2 Name [9] => Item 2 Variation [10] => Order Number [11] => Item 3 Colour [12] => Buyer Name [13] => Item 3 Name [14] => Item 3 Variation )}這顯示了 3 個(gè)虛擬訂單，在此示例中，第一個(gè)訂單有 1 個(gè)項(xiàng)目，第二個(gè)訂單有 2 個(gè)項(xiàng)目，第三個(gè)訂單有 3 個(gè)項(xiàng)目。如您所見，添加的項(xiàng)目越多，該項(xiàng)目的數(shù)組就會(huì)變得更長(zhǎng)，并且數(shù)字總是在一定數(shù)量的塊中增加。即，在上面的示例中，第 2 項(xiàng)的標(biāo)題是 [3]，然后第 2 項(xiàng)的標(biāo)題是 [8]（與之前相同加 5），然后在示例 3 中，它是 [3]、[8] 和 [13] ] 所以基本上總是從 prev number ref 加上 5那么有沒(méi)有一種方法可以回顯一個(gè)值加上 prev 值的 5 并繼續(xù)這樣做喜歡$item1title = $myarray[5];$item2title = $item1title[+5];$item3title = $item2title[+5];echo $item1title; echo $item2title; echo $item2title;
1 回答
寶慕林4294392
TA貢獻(xiàn)2021條經(jīng)驗(yàn) 獲得超8個(gè)贊
這是一個(gè)快速示例，說(shuō)明如何以更有用的方式構(gòu)建數(shù)組。如評(píng)論中所述，我們創(chuàng)建了一個(gè)主訂單數(shù)組。在該數(shù)組中，每個(gè)訂單都有一個(gè)條目。這些訂單中的每一個(gè)也是一個(gè)數(shù)組，包含訂單的詳細(xì)信息以及項(xiàng)目。這些項(xiàng)目包含在一個(gè)數(shù)組中，每個(gè)項(xiàng)目都是數(shù)組中的一個(gè)條目。每個(gè)項(xiàng)目本身也是一個(gè)數(shù)組，條目是項(xiàng)目詳細(xì)信息。
$orders = array(
array(
"orderNum" => 123,
"buyerId" => 111,
"items" => array(
array(
"id" => 321,
"name" => "Item One",
"color" => "red"
)
)
),
array(
"orderNum" => 456,
"buyerId" => 444,
"items" => array(
array(
"id" => 321,
"name" => "Item One",
"color" => "red"
),
array(
"id" => 356,
"name" => "Item Two",
"color" => "green"
)
)
),
array(
"orderNum" => 789,
"buyerId" => 765,
"items" => array(
array(
"id" => 321,
"name" => "Item One",
"color" => "red"
),
array(
"id" => 356,
"name" => "Item Two",
"color" => "green"
),
array(
"id" => 999,
"name" => "Item Three",
"color" => "blue"
)
)
)
);
這是一個(gè)快速示例，說(shuō)明如何訪問(wèn)訂單和項(xiàng)目
foreach($orders as $order)
{
echo "Order number: " . $order["orderNum"] . "\r\n";
foreach($order["items"] as $item)
{
echo "Item Name: " . $item["name"] . "\r\n";
}
echo "\r\n";
}
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