http - PHP - Retrieve Access Token - Disable implicit OAuth -

i'm using instagram api. retrieve access token, use method parameter 'code'. code parameter, can build url returns me access token.

example :

https://instagram.com/oauth/authorize/?client_id=code_id&redirect_uri=my-redirect-url&response_type=code 

when reach url through web browser, after redirection instagram, returns web service created. then, access token stored.

how can automatize in php?

this example doesn't work:

exec('curl https://instagram.com/oauth/authorize/?client_id=code_id&redirect_uri=my-redirect-url&response_type=code'); 

how can handle redirection instagram?

thanks in advance.

there's no way automate since explicit user authentication required before authorization code generated. you'll have redirect using php:

header('location: https://instagram.com/oauth/authorize/?client_id=code_id&redirect_uri=my-redirect-url&response_type=code'); 

have user authenticate in browser instagram , grab code delivered redirect_uri instagram.