问题
The title is quite cryptic but essentially whats happening is I'm calling the Google Places Photo API with the following url
https://maps.googleapis.com/maps/api/place/photo?key=123456789&photoreference=CnRvAAAAV_35nLjUhcQXkoVdwN2YGP58Z3trNMDCRXznXqR2_0FbxXv60ssT2JN0ryI_ZP9-371u3JycqlH5oxLy8-bo2IkbkAfWD7fjyiytcEtWmk76Cseyxj9OlDozspXy8Cu7NFphl4N1AXSnj6QadSy6fxIQvc6Kiai-6HxMphQ7WCmYpBoUwxVnwEHl5zo0EbuoWCObJYTmAuA&maxwidth=400&maxheight=400&sensor=false
(I've changed my API key)
When accessing this link via the browser it redirect to a different url:
https://lh3.googleusercontent.com/-WjnhIv4ry4I/T6Wg4kRb4kI/AAAAAAAuqqc/t6yVdN-jcC0/s1600-w220-h151/City%2BRestaurant
I need a way to get that second URL using PHP. Using cURL gives me a 302 "document has been moved to here" message.
Anyone know how I can get that second url via PHP?
回答1:
Make your request using curl with curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); which will cause curl to follow the redirect.
Then, you can use curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); which will give you the last effective URL that curl fetched.
Alternatively, you can set CURLOPT_FOLLOWLOCATION to false, and set CURLOPT_HEADERS to true, and parse the redirect location out yourself using a simple regex.
来源：https://stackoverflow.com/questions/15297000/get-redirected-url-from-url