CODEWITHSUNDEEP
phpjavascriptfacebook
Abishek
Abishek

Reputation: 11701

How to find if the app is running within facebook or outside of facebook

How can we find using PHP or Javascript if the facebook app is running within Facebook or running outside of Facebook as a Website. Am not sure what should be the criterion to check?

Upvotes: 0

Views: 149

Answers (2)

Francesco Bramato
Francesco Bramato

Reputation: 43

Check for signed_request is not enough. In case of more pages, navigation is in frame and you lose the signed_request parameter.

First check for signed_request in first page, then put in session a bool variable and do controls on this.

This approach has a problem: if you open another tab and visit app in Facebook (or viceversa), you will share the session :)

Upvotes: 1

Abishek
Abishek

Reputation: 11701

Did some checking. The answer below works:

if(isset($_REQUEST["signed_request"]){
// Opened in facebook
}else{

//opened outside facebook.
}

Upvotes: 3

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