我有一组奇怪的数组，我需要计算特定值在结果中显示的次数。目前我有这段代码。
$nested_arrays = shopp_orders( '2011-11-30 00:00:00', '2012-11-30 12:59:59', false, '', 2 );
print_r($nested_arrays);
此代码从数据库中提取多个数组（序列化数据）并输出如下
Array ( [30] => Purchase Object (
[purchased] => Array ( )
[columns] => Array ( )
[message] => Array ( )
[data] => Array ( )
[invoiced] => [authorized] => [captured] => [refunded] => [voided] => [balance] => 0 [downloads] => [shipable] => [shipped] => [stocked] => [_position:DatabaseObject:private] => 0 [_properties:DatabaseObject:private] => Array ( )
[_ignores:DatabaseObject:private] => Array ( [0] => _ )
[_map:protected] => Array ( )
[_table] => wp_shopp_demo_shopp_purchase [_key] => id [_datatypes] => Array (
[id] => int [customer] => int [shipping] => int [billing] => int [currency] => int [ip] => string [firstname] => string [lastname] => string [email] => string [phone] => string [company] => string [card] => string [cardtype] => string [cardexpires] => date [cardholder] => string [address] => string [xaddress] => string [city] => string [state] => string [country] => string [postcode] => string [shipname] => string [shipaddress] => string [shipxaddress] => string [shipcity] => string [shipstate] => string [shipcountry] => string [shippostcode] => string [geocode] => string [promos] => string [subtotal] => float [freight] => float [tax] => float [total] => float [discount] => float [fees] => float [taxing] => list [txnid] => string [txnstatus] => string [gateway] => string [paymethod] => string [shipmethod] => string [shipoption] => string [status] => int [data] => string [secured] => string [created] => date [modified] => date ) [_lists] => Array ( [taxing] => Array ( [0] => exclusive [1] => inclusive ) )
[id] => 30 [customer] => 12 [shipping] => 23 [billing] => 23 [currency] => 0 [ip] => 24.125.58.205 [firstname] => test [lastname] => test [email] => webmaster@note2voter.com [phone] => 1234567890 [company] => [card] => 1111 [cardtype] => Visa [cardexpires] => 1420070400 [cardholder] => test [address] => 123 Any Street [xaddress] => [city] => Danville [state] => VA [country] => US [postcode] => 24541 [shipname] => [shipaddress] => 123 Any Street [shipxaddress] => [shipcity] => Danville [shipstate] => VA [shipcountry] => US [shippostcode] => 24541 [geocode] => [promos] => Array ( ) [subtotal] => 49.37 [freight] => 9.98 [tax] => 9.874 [total] => 69.22 [discount] => 0 [fees] => 0 [taxing] => exclusive [txnid] => [txnstatus] => authed [gateway] => TestMode [paymethod] => credit-card-test-mode [shipmethod] => ItemRates-0 [shipoption] => Fast Shipping [status] => 0 [secured] => [created] => 1354096946 [modified] => 1354096946
)
[29] => Purchase Object (
[purchased] => Array ( )
[columns] => Array ( )
[message] => Array ( )
[data] => Array ( )
[invoiced] => [authorized] => [captured] => [refunded] => [voided] => [balance] => 0 [downloads] => [shipable] => [shipped] => [stocked] => [_position:DatabaseObject:private] => 0 [_properties:DatabaseObject:private] => Array ( )
[_ignores:DatabaseObject:private] => Array ( [0] => _ ) [_map:protected] => Array ( ) [_table] => wp_shopp_demo_shopp_purchase [_key] => id [_datatypes] => Array ( [id] => int [customer] => int [shipping] => int [billing] => int [currency] => int [ip] => string [firstname] => string [lastname] => string [email] => string [phone] => string [company] => string [card] => string [cardtype] => string [cardexpires] => date [cardholder] => string [address] => string [xaddress] => string [city] => string [state] => string [country] => string [postcode] => string [shipname] => string [shipaddress] => string [shipxaddress] => string [shipcity] => string [shipstate] => string [shipcountry] => string [shippostcode] => string [geocode] => string [promos] => string [subtotal] => float [freight] => float [tax] => float [total] => float [discount] => float [fees] => float [taxing] => list [txnid] => string [txnstatus] => string [gateway] => string [paymethod] => string [shipmethod] => string [shipoption] => string [status] => int [data] => string [secured] => string [created] => date [modified] => date ) [_lists] => Array ( [taxing] => Array ( [0] => exclusive [1] => inclusive ) )
[id] => 29 [customer] => 13 [shipping] => 26 [billing] => 25 [currency] => 0 [ip] => 70.176.223.40 [firstname] => Bryan [lastname] => Crawford [email] => bjcisfree@gmail.com [phone] => 4802323049 [company] => ggg [card] => 1111 [cardtype] => Visa [cardexpires] => 1356998400 [cardholder] => ggg [address] => 1300 W Warner Rd [xaddress] => [city] => Gilbert [state] => AZ [country] => US [postcode] => 85224 [shipname] => [shipaddress] => 1300 W Warner Rd [shipxaddress] => [shipcity] => Gilbert [shipstate] => AZ [shipcountry] => US [shippostcode] => 85224 [geocode] => [promos] => Array ( ) [subtotal] => 29.95 [freight] => 9.98 [tax] => 0 [total] => 39.93 [discount] => 0 [fees] => 0 [taxing] => exclusive [txnid] => [txnstatus] => authed [gateway] => TestMode [paymethod] => credit-card-test-mode [shipmethod] => ItemRates-0 [shipoption] => Fast Shipping [status] => 0 [secured] => [created] => 1353538691 [modified] => 1353538691
)
)
这是仅来自两个订单的订单数据。我需要计算每个州，每个城市，船舶方法等在阵列中出现的次数。我尝试了以下但它只计算了2个大数组。
function count_nested_array_keys(array &$a, array &$res=array()) {
$i = 0;
foreach ($a as $key=>$value) {
if (is_array($value)) {
$i += count_nested_array_keys($value, &$res);
}
else {
if(!isset($res[$key])) $res[$key] = 0;
$res[$key]++;
$i++;
}
}
return $i;
}
$total_item_count = count_nested_array_keys($nested_arrays, $count_per_key);
echo "count per key: ", print_r($count_per_key), "\n";
如果有人可以告诉我如何计算每个州值发生的次数， 例， VA = 2 NC = 1 我可以从那里拿走它。谢谢。
答案 0 :(得分：0)
从您显示的输出中，您正在处理一组对象，而不是关联数组，因此您无法像使用数组一样使用foreach语句访问对象属性中的值。
但是，您可以使用get_object_vars( object $object) PHP函数获取对象属性的关联数组。
以下是一些示例代码：
<?php
class Purchase {
var $state;
var $country;
public function __construct($state, $country) {
$this->state = $state;
$this->country = $country;
}
}
$arr = Array(
new Purchase('VA', 'USA'),
new Purchase('VA', 'USA'),
new Purchase('NY', 'USA')
);
var_dump($arr);
$counts = array();
foreach($arr as $p) {
foreach(get_object_vars($p) as $key => $value) {
if(isset($counts[$value]))
$counts[$value]++;
else
$counts[$value] = 1;
}
}
var_dump($counts);
<强>输出：
array
0 =>
object(Purchase)[1]
public 'state' => string 'VA' (length=2)
public 'country' => string 'USA' (length=3)
1 =>
object(Purchase)[2]
public 'state' => string 'VA' (length=2)
public 'country' => string 'USA' (length=3)
2 =>
object(Purchase)[3]
public 'state' => string 'NY' (length=2)
public 'country' => string 'USA' (length=3)
array
'VA' => int 2
'USA' => int 3
'NY' => int 1