我正在尝试从Google Geocode v3 API XML响应中提取邮政编码。 我遇到的困难是，有时postal_code值包含在第 6 个address_element中，有时包含在第 7 个中。 这是我正在使用的 XML 响应，在此示例响应中，您可以看到postal_code是 address_component 数组的第 6 个元素：
SimpleXMLElement Object
(
[status] => OK
[result] => Array
(
[0] => SimpleXMLElement Object
(
[type] => street_address
[formatted_address] => 177 Church St, Toronto, ON M5C 2G5, Canada
[address_component] => Array
(
[0] => SimpleXMLElement Object
(
[long_name] => 177
[short_name] => 177
[type] => street_number
)
[1] => SimpleXMLElement Object
(
[long_name] => Church St
[short_name] => Church St
[type] => route
)
[2] => SimpleXMLElement Object
(
[long_name] => Toronto
[short_name] => Toronto
[type] => Array
(
[0] => locality
[1] => political
)
)
[3] => SimpleXMLElement Object
(
[long_name] => Toronto
[short_name] => Toronto
[type] => Array
(
[0] => administrative_area_level_2
[1] => political
)
)
[4] => SimpleXMLElement Object
(
[long_name] => Ontario
[short_name] => ON
[type] => Array
(
[0] => administrative_area_level_1
[1] => political
)
)
[5] => SimpleXMLElement Object
(
[long_name] => Canada
[short_name] => CA
[type] => Array
(
[0] => country
[1] => political
)
)
[6] => SimpleXMLElement Object
(
[long_name] => M5C 2G5
[short_name] => M5C 2G5
[type] => postal_code
)
)
[geometry] => SimpleXMLElement Object
(
[location] => SimpleXMLElement Object
(
[lat] => 43.6547363
[lng] => -79.3763746
)
[location_type] => RANGE_INTERPOLATED
[viewport] => SimpleXMLElement Object
(
[southwest] => SimpleXMLElement Object
(
[lat] => 43.6533849
[lng] => -79.3777345
)
[northeast] => SimpleXMLElement Object
(
[lat] => 43.6560829
[lng] => -79.3750365
)
)
[bounds] => SimpleXMLElement Object
(
[southwest] => SimpleXMLElement Object
(
[lat] => 43.6547315
[lng] => -79.3763964
)
[northeast] => SimpleXMLElement Object
(
[lat] => 43.6547363
[lng] => -79.3763746
)
)
)
)
我没有尝试过这个，但我认为它应该有效。
$address = $array->result[0]->address_component;
$postal_code = '';
foreach($address as $adr){
if($adr->type == 'postal_code'){
$postal_code = $adr->long_name;
}
}