我想根据它们是哪种项目类型对以下数组进行排序和回显到单独的列表中。
Array
(
[0] => Array
(
[itemid] => 1
[itemname] => Sword
[itemtype] => Standard
)
[1] => Array
(
[itemid] => 2
[itemname] => Dagger
[itemtype] => Standard
)
[2] => Array
(
[itemid] => 3
[itemname] => Backpack
[itemtype] => Standard
)
[3] => Array
(
[itemid] => 4
[itemname] => Rope (50ft)
[itemtype] => Standard
)
[4] => Array
(
[itemid] => 5
[itemname] => Tinderbox
[itemtype] => Standard
)
[5] => Array
(
[itemid] => 6
[itemname] => Torch
[itemtype] => Standard
)
[6] => Array
(
[itemid] => 6
[itemname] => Torch
[itemtype] => Standard
)
[7] => Array
(
[itemid] => 6
[itemname] => Torch
[itemtype] => Standard
)
[8] => Array
(
[itemid] => 6
[itemname] => Torch
[itemtype] => Standard
)
[9] => Array
(
[itemid] => 6
[itemname] => Torch
[itemtype] => Standard
)
[10] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[11] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[12] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[13] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[14] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[15] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[16] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[17] => Array
(
[itemid] => 8
[itemname] => Bread
[itemtype] => Provisions
)
[18] => Array
(
[itemid] => 9
[itemname] => Healing Salve
[itemtype] => Magical
)
[19] => Array
(
[itemid] => 9
[itemname] => Healing Salve
[itemtype] => Magical
)
)
我想根据itemtype键将其回显到列表中。IE：
Standard
=========
Sword Dagger Backpack Rope (50ft) Tinderbox Torch x5
Provisions
=========
Bread x8
Magical
=========
Healing Salve
我试图这样做是徒劳的：
foreach ($array as $value) {
if ($value['itemtype'] == 'Standard'){
echo $value['itemname'] . "\n";
}
foreach ($array as $value) {
if ($value['itemtype'] == 'Provisions'){
echo $value['itemname'] . "\n";
}
foreach ($array as $value) {
if ($value['itemtype'] == 'Magical'){
echo $value['itemname'] . "\n";
}
首先将其拆分为单独的数组是否更明智？
您还可以将项目添加到3个不同的字符串中，并在末尾回显连接的字符串：
$standard = '';
$provisions = '';
$magical = '';
foreach ($array as $value) {
switch $value['itemtype']{
case 'Standard':
$standard .= $value['itemname'] . "\n";
break;
case 'Provisions':
$provisions .= $value['itemname'] . "\n";
break;
case 'Magical':
$magical .= $value['itemname'] . "\n";
break;
default:
break;
}
}
echo $standard . $provisions . $magical;
因此，您只需要在数组上循环一次，就可以轻松添加更多的案例。
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