Filter view from $_GET parameters I have a classic view with fields from classic nodes. I have made a custom form that reload the view with parameters :

mypage?nid=168


But to display only the wanted data, my view use CONTEXTUAL FILTERS and need this format :

mypage/168


How can I filter my view from $_GET parameters.
Use "Global: PHP" field to get the required parameter value. If views_php is not installed, then use this link, views_php to install the module and give the permission using admin/people/permissions. 

Go to your Views -> CONTEXTUAL FILTERS -> ADD -> Select "Global: PHP" then you can retrieve the parameter using $_SERVER[QUERY_STRING] and retrieve the value.

And also you can use $_GET['nid'] to get the value.