PHP:如何从JSON数组获取属性? [英] PHP: How do I get an attribute from a JSON array?
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问题描述
我有以下JSON数组:
I have the following JSON array:
<?php
$json = {
"status": "OK",
"results": [ {
"types": [ "street_address" ],
"formatted_address": "5721 N Northcott Ave, Chicago, IL 60631, USA",
"address_components": [ {
"long_name": "5721",
"short_name": "5721",
"types": [ "street_number" ]
}, {
"long_name": "Illinois",
"short_name": "IL",
"types": [ "administrative_area_level_1", "political" ]
}, {
"long_name": "60631",
"short_name": "60631",
"types": [ "postal_code" ]
} ],
"geometry": {
"location": {
"lat": 41.9858860,
"lng": -87.7907460
},
"location_type": "ROOFTOP",
"viewport": {
"southwest": {
"lat": 41.9827384,
"lng": -87.7938936
},
"northeast": {
"lat": 41.9890336,
"lng": -87.7875984
}
}
}
} ]
};
?>
使用PHP,如何从上面的JSON数组中获取geometery->location->lat
& lng
值?
Using PHP, how do I get the geometery->location->lat
&lng
values from my JSON array above?
例如(伪代码):
<?php
$lat = $json['geometry']['location']['lat']; // 41.9858860
$lng = $json['geometry']['location']['lng']; // -87.7907460
?>
推荐答案
您使用 json_decode
,然后$var->results[0]->geometry->location->lat;
.
json_decode
产生以下结构:
object(stdClass)[1]
public 'status' => string 'OK' (length=2)
public 'results' =>
array
0 =>
object(stdClass)[2]
public 'types' =>
array
0 => string 'street_address' (length=14)
public 'formatted_address' => string '5721 N Northcott Ave, Chicago, IL 60631, USA' (length=44)
public 'address_components' =>
array
0 =>
object(stdClass)[3]
public 'long_name' => string '5721' (length=4)
public 'short_name' => string '5721' (length=4)
public 'types' =>
array
0 => string 'street_number' (length=13)
1 =>
object(stdClass)[4]
public 'long_name' => string 'Illinois' (length=8)
public 'short_name' => string 'IL' (length=2)
public 'types' =>
array
0 => string 'administrative_area_level_1' (length=27)
1 => string 'political' (length=9)
2 =>
object(stdClass)[5]
public 'long_name' => string '60631' (length=5)
public 'short_name' => string '60631' (length=5)
public 'types' =>
array
0 => string 'postal_code' (length=11)
public 'geometry' =>
object(stdClass)[6]
public 'location' =>
object(stdClass)[7]
public 'lat' => float 41.985886
public 'lng' => float -87.790746
public 'location_type' => string 'ROOFTOP' (length=7)
public 'viewport' =>
object(stdClass)[8]
public 'southwest' =>
object(stdClass)[9]
public 'lat' => float 41.9827384
public 'lng' => float -87.7938936
public 'northeast' =>
object(stdClass)[10]
public 'lat' => float 41.9890336
public 'lng' => float -87.7875984
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