为什么会出现此GeoCode错误

Question

This is what I'm getting when I try to make a post on my site. What do I need to do to fix?

Warning: file_get_contents( http://maps.google.com/maps/api/geocode/json?address= ): failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request in /home/dfwwrightimc/public_html/wp-content/themes/visitdfw/functions.php on line 351

function geo_lat_long($address) {
    $address1 = str_replace(" ","+",$address);
    $address1 = str_replace("&","%26",$address1);
    $json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address1");
    $json = json_decode($json);
    $lat = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lat'};
    $long = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lng'};
    return array('lat' => $lat, 'long' => $long);
}

Answer 1

Change the following lines:

$address1 = str_replace(" ","+",$address);
$address1 = str_replace("&","%26",$address1);
$json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address1");

to

$address1 = urlencode ( $address );
$json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address1");

and try again.

Explanation: The error Bad Request is related to the incorrect URL.

urlencode — URL-encodes string

string urlencode ( string $str )

This function is convenient when encoding a string to be used in a query part of a URL, as a convenient way to pass variables to the next page.

Answer 2

Check how you are calling the geo_lat_long() function. Is the address passed in correctly? Since the URL in the error message ends in ?address= with no value, it looks like $address1 is empty.