Question

我有一个数组可以在对象中返回更多数组和其他数据。如何定位这些对象内的数据？ var_export中对象前面的名称是您可以引用的实际名称吗？

在以下示例代码中：我以为var_dump（$ product-＆gt; WC_Product_Variation ['variation_id']）;将返回“278”而不是它给出一个NULL。关于定位对象内的内容，我做错了什么？

这是$ product的var_export：

array (
'product_id' => 259,
 'variation_id' => 278,
 'variation' =>
 array (
 'pa_afmetingen-liggend' => 'm011',
 ),
 'quantity' => 1,
 'data' =>
 WC_Product_Variation::__set_state(array(
 'variation_id' => 278,
 'parent' =>
 WC_Product_Variable::__set_state(array(
 'children' => NULL,
 'total_stock' => NULL,
 'id' => 259,
 'post' =>
 WP_Post::__set_state(array(
 'ID' => 259,
 'post_author' => '1',
 'post_date' => '2013-06-05 13:22:26',
 'post_date_gmt' => '2013-06-05 13:22:26',  'post_content' => 'liggend',  'post_title' => 'Wit liggend',  'post_excerpt' => '',  'post_status' => 'publish',  'comment_status' => 'open',  'ping_status' => 'closed',  'post_password' => '',  'post_name' => 'wit-liggend',  'to_ping' => '',  'pinged' => '',  'post_modified' => '2013-06-27 09:24:08',  'post_modified_gmt' => '2013-06-27 09:24:08',  'post_content_filtered' => '',  'post_parent' => 0,  'guid' => 'http://www.***.nl/?post_type=productp=259',
 'menu_order' => 0,
 'post_type' => 'product',
 'post_mime_type' => '',
 'comment_count' => '0',
 'filter' => 'raw',
 )),
 'product_type' => 'variable',
 )),
 'variation_data' =>
 array (
 'attribute_pa_afmetingen-liggend' => 'm011',  ),  'variation_has_length' => false,  'variation_has_width' => false,  'variation_has_height' => false,  'variation_has_weight' => false,  'variation_has_stock' => false,  'variation_has_sku' => false,  'variation_shipping_class' => false,  'variation_shipping_class_id' => false,  'variation_has_tax_class' => true,  'id' => 259,  'post' =>  WP_Post::__set_state(array(  'ID' => 259,  'post_author' => '1',  'post_date' => '2013-06-05 13:22:26',  'post_date_gmt' => '2013-06-05 13:22:26',  'post_content' => 'liggend',  'post_title' => 'Wit liggend',  'post_excerpt' => '',  'post_status' => 'publish',  'comment_status' => 'open',  'ping_status' => 'closed',  'post_password' => '',  'post_name' => 'wit-liggend',  'to_ping' => '',  'pinged' => '',  'post_modified' => '2013-06-27 09:24:08',  'post_modified_gmt' => '2013-06-27 09:24:08',  'post_content_filtered' => '',  'post_parent' => 0,  'guid' => 'http://www.***.nl/?post_type=productp=259',
 'menu_order' => 0,
 'post_type' => 'product',
 'post_mime_type' => '',
 'comment_count' => '0',
 'filter' => 'raw',
 )),
 'product_type' => 'variation',
 'product_custom_fields' =>
 array (
 '_sku' =>
 array (
 0 => '',
 ),
 '_weight' =>
 array (
 0 => '',
 ),
 '_length' =>
 array (
 0 => '',
 ),
 '_width' =>
 array (
 0 => '',
 ),
 '_height' =>
 array (
 0 => '',
 ),
 '_stock' =>
 array (
 0 => '',
 ),
 '_thumbnail_id' =>
 array (
 0 => '0',
 ),
 '_virtual' =>
 array (
 0 => 'no',
 ),
 '_downloadable' =>
 array (
 0 => 'no',
 ),
 '_regular_price' =>
 array (
 0 => '83',
 ),
 '_sale_price' =>
 array (
 0 => '',
 ),
 '_sale_price_dates_from' =>
 array (
 0 => '',
 ),
 '_sale_price_dates_to' =>
 array (
 0 => '',
 ),
 '_price' =>
 array (
 0 => '83',
 ),
 '_tax_class' =>
 array (
 0 => '',
 ),
 '_download_limit' =>
 array (
 0 => '',
 ),
 '_download_expiry' =>
 array (
 0 => '',
 ),
 '_file_paths' =>
 array (
 0 => '',
 ),
 'attribute_pa_afmetingen-liggend' =>
 array (
 0 => 'm011',
 ),
 ),
 'downloadable' => 'no',
 'virtual' => 'no',
 'tax_class' => '',
 'sale_price_dates_from' => '',
 'price' => '83',
 'regular_price' => '83',
 'sale_price' => '',
 'total_stock' => 0,
 )),
 'time' => 'http://www.***.nl/wp-content/themes/***/uploads/resized_1372667650.jpg',
 'thumbnail' => 'http://www.***.nl/wp-content/themes/***/uploads/resizedThumbnail_1372667650.jpg',
 'line_total' => 83,
 'line_tax' => 0,
 'line_subtotal' => 83,
 'line_subtotal_tax' => 0,
)

Answer 1

$product['data]->variation_id会给你278。

Answer 2

278（假设variation_id属性具有公开可见性）：

echo $product['data']->variation_id;

如果要查看用于调试的数据结构，则使用print_r()或var_dump()会更合适。 var_export()执行一些额外的处理，使得结果可解析，而不需要进行调试。

如何在php中定位对象内的数组

2 个答案: