我有一个数组：
Array
(
[0] => Array
(
[order_item_id] => 2
[meta_id] => 9276
[post_id] => 905
[meta_key] => _billing_email
[meta_value] => code4webtest@gmail.com
)
[1] => Array
(
[order_item_id] => 2
[meta_id] => 9275
[post_id] => 905
[meta_key] => _billing_postcode
[meta_value] => 94025
)
[2] => Array
(
[order_item_id] => 2
[meta_id] => 9274
[post_id] => 905
[meta_key] => _billing_state
[meta_value] => CA
)
[3] => Array
(
[order_item_id] => 2
[meta_id] => 9273
[post_id] => 905
[meta_key] => _billing_city
[meta_value] => Menlo Park
)
[4] => Array
(
[order_item_id] => 2
[meta_id] => 9271
[post_id] => 905
[meta_key] => _billing_address_1
[meta_value] => 3723 Heaven Avenue
)
[5] => Array
(
[order_item_id] => 2
[meta_id] => 9272
[post_id] => 905
[meta_key] => _billing_address_2
[meta_value] => Suite 119
)
[6] => Array
(
[order_item_id] => 2
[meta_id] => 9302
[post_id] => 905
[meta_key] => _completed_date
[meta_value] => 2015-01-27 11:41:07
)
[7] => Array
(
[order_item_id] => 2
[meta_id] => 9267
[post_id] => 905
[meta_key] => _billing_country
[meta_value] => US
)
[8] => Array
(
[order_item_id] => 2
[meta_id] => 9268
[post_id] => 905
[meta_key] => _billing_first_name
[meta_value] => Prem
)
[9] => Array
(
[order_item_id] => 2
[meta_id] => 9269
[post_id] => 905
[meta_key] => _billing_last_name
[meta_value] => Tiwari
)
[10] => Array
(
[order_item_id] => 2
[meta_id] => 9270
[post_id] => 905
[meta_key] => _billing_company
[meta_value] => trantor
)
[11] => Array
(
[order_item_id] => 2
[meta_id] => 9264
[post_id] => 905
[meta_key] => _customer_ip_address
[meta_value] => 192.168.177.60
)
[12] => Array
(
[order_item_id] => 2
[meta_id] => 9265
[post_id] => 905
[meta_key] => _customer_user_agent
[meta_value] => Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36
)
[13] => Array
(
[order_item_id] => 2
[meta_id] => 9266
[post_id] => 905
[meta_key] => _customer_user
[meta_value] => 2
)
[14] => Array
(
[order_item_id] => 2
[meta_id] => 9263
[post_id] => 905
[meta_key] => _prices_include_tax
[meta_value] => no
)
[15] => Array
(
[order_item_id] => 2
[meta_id] => 9262
[post_id] => 905
[meta_key] => _order_currency
[meta_value] => SGD
)
[16] => Array
(
[order_item_id] => 2
[meta_id] => 9261
[post_id] => 905
[meta_key] => _order_key
[meta_value] => wc_order_54c74375c9c0d
)
[17] => Array
(
[order_item_id] => 2
[meta_id] => 9299
[post_id] => 905
[meta_key] => _edit_last
[meta_value] => 1
)
[18] => Array
(
[order_item_id] => 2
[meta_id] => 9300
[post_id] => 905
[meta_key] => _transaction_id
[meta_value] =>
)
[19] => Array
(
[order_item_id] => 2
[meta_id] => 9301
[post_id] => 905
[meta_key] => slide_template
[meta_value] => default
)
[20] => Array
(
[order_item_id] => 2
[meta_id] => 9298
[post_id] => 905
[meta_key] => _edit_lock
[meta_value] => 1422358750:1
)
[21] => Array
(
[order_item_id] => 2
[meta_id] => 9297
[post_id] => 905
[meta_key] => _recorded_coupon_usage_counts
[meta_value] => yes
)
[22] => Array
(
[order_item_id] => 2
[meta_id] => 9296
[post_id] => 905
[meta_key] => _recorded_sales
[meta_value] => yes
)
[23] => Array
(
[order_item_id] => 2
[meta_id] => 9295
[post_id] => 905
[meta_key] => _download_permissions_granted
[meta_value] => 1
)
[24] => Array
(
[order_item_id] => 2
[meta_id] => 9294
[post_id] => 905
[meta_key] => _order_total
[meta_value] => 10.00
)
[25] => Array
(
[order_item_id] => 2
[meta_id] => 9293
[post_id] => 905
[meta_key] => _order_shipping_tax
[meta_value] => 0
)
[26] => Array
(
[order_item_id] => 2
[meta_id] => 9292
[post_id] => 905
[meta_key] => _order_tax
[meta_value] => 0
)
[27] => Array
(
[order_item_id] => 2
[meta_id] => 9291
[post_id] => 905
[meta_key] => _cart_discount
[meta_value] => 0
)
[28] => Array
(
[order_item_id] => 2
[meta_id] => 9290
[post_id] => 905
[meta_key] => _order_discount
[meta_value] => 0
)
[29] => Array
(
[order_item_id] => 2
[meta_id] => 9289
[post_id] => 905
[meta_key] => _order_shipping
[meta_value] => 0
)
[30] => Array
(
[order_item_id] => 2
[meta_id] => 9288
[post_id] => 905
[meta_key] => _payment_method_title
[meta_value] => Pay Using Your Account Balance
)
[31] => Array
(
[order_item_id] => 2
[meta_id] => 9287
[post_id] => 905
[meta_key] => _payment_method
[meta_value] => cod
)
[32] => Array
(
[order_item_id] => 2
[meta_id] => 9286
[post_id] => 905
[meta_key] => _shipping_postcode
[meta_value] => 94025
)
[33] => Array
(
[order_item_id] => 2
[meta_id] => 9285
[post_id] => 905
[meta_key] => _shipping_state
[meta_value] => CA
)
[34] => Array
(
[order_item_id] => 2
[meta_id] => 9284
[post_id] => 905
[meta_key] => _shipping_city
[meta_value] => Menlo Park
)
[35] => Array
(
[order_item_id] => 2
[meta_id] => 9283
[post_id] => 905
[meta_key] => _shipping_address_2
[meta_value] => Suite 119
)
[36] => Array
(
[order_item_id] => 2
[meta_id] => 9282
[post_id] => 905
[meta_key] => _shipping_address_1
[meta_value] => 3723 Heaven Avenue
)
[37] => Array
(
[order_item_id] => 2
[meta_id] => 9281
[post_id] => 905
[meta_key] => _shipping_company
[meta_value] => trantor
)
[38] => Array
(
[order_item_id] => 2
[meta_id] => 9280
[post_id] => 905
[meta_key] => _shipping_last_name
[meta_value] => Tiwari
)
[39] => Array
(
[order_item_id] => 2
[meta_id] => 9279
[post_id] => 905
[meta_key] => _shipping_first_name
[meta_value] => Prem
)
[40] => Array
(
[order_item_id] => 2
[meta_id] => 9278
[post_id] => 905
[meta_key] => _shipping_country
[meta_value] => US
)
[41] => Array
(
[order_item_id] => 2
[meta_id] => 9277
[post_id] => 905
[meta_key] => _billing_phone
[meta_value] => (650) 777 5480
)
)
但我需要上面数组中的帐单邮寄地址和电子邮件ID。我怎样才能得到。
提前致谢...
答案 0 :(得分：2)
您可以在vanilla-PHP中使用array_filter：
$filter = array_filter($array, function ($element) {
return in_array($element['meta_key'], array('_billing_email', '_billing_address_1'));
});
或者您可以使用库ouzo-goodies：
$filter = Arrays::filter($array, function ($element) {
return in_array($element['meta_key'], array('_billing_email', '_billing_address_1'));
});
结果：
Array
(
[0] => Array
(
[order_item_id] => 2
[meta_id] => 9276
[post_id] => 905
[meta_key] => _billing_email
[meta_value] => code4webtest@gmail.com
)
[2] => Array
(
[order_item_id] => 2
[meta_id] => 9276
[post_id] => 905
[meta_key] => _billing_address_1
[meta_value] => 3723 Heaven Avenue
)
)
答案 1 :(得分：-1)
<?php
foreach ($array as $value1)
{
foreach ($value1 as $key=>$value2)
{
echo $key . " -> " . $value . "</br>";
}
}
?>