我正在尝试从Google Maps API中提取内容。 但是当我在URL中连接变量时,它不起作用 如果我只使用计划文本,则可以使用。 我在这里做什么错了?
不起作用:
$post_location = "lagos";
$url_loc = 'https://maps.googleapis.com/maps/api/geocode/json?address='. $post_location .'&sensor=true&key=AIzaSyDXX_Y0-7b1XM2';
$obj = json_decode(file_get_contents($url_loc), true);
var_dump($obj); //outputs null
但这可行:
$url_loc = 'https://maps.googleapis.com/maps/api/geocode/json?address=lagos&sensor=true&key=AIzaSyDXX_Y0-7b1XM2';
$obj = json_decode(file_get_contents($url_loc), true);
var_dump($obj); //outputs all results
为什么第一个选项不起作用?
我正在使用的完整代码
<form action="" method="POST">
<input type="text" name="surl" value="/storefront/output.json">
<input type="submit" value="Submit"/>
</form>
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
$url = $_POST['surl'];
$string = file_get_contents($url);
$json_a = json_decode($string, true);
$post_id = 243;
foreach ($json_a as $person_name => $person_a) {
$post_location = $person_a['location'];
$url_loc = 'https://maps.googleapis.com/maps/api/geocode/json?address='.$post_location.'&sensor=true&key=AIzaSyDXX_Y0-7b1XM2';
$obj = json_decode(file_get_contents($url_loc), true);
var_dump($obj); // outputs null
foreach ($obj as $key ) {
$lat = $key[0]['geometry']['location']['lat'];
$lng = $key[0]['geometry']['location']['lng'];
$full_address = $key[0]['formatted_address'];
update_post_meta( $post_id, 'prod-lat', sanitize_text_field( $lat ));
update_post_meta( $post_id, 'prod-lng', sanitize_text_field( $lng ));
break;
}
}
}
答案 0 :(得分:1)
我要向URL字符串传递非法字符。如果要将$ post_location变量传递给URL,请使用urlencode函数:
$post_location = "some address here";
$url_loc = 'https://maps.googleapis.com/maps/api/geocode/json?address='.
urlencode($post_location) .'&sensor=true&key=AIzaSyDXX_Y0-7b1XM2';
$obj = json_decode(file_get_contents($url_loc), true);
没有urlencode,您将得到警告:failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request in /var/www/public_html/index.php on line 7
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