Editable banner for every path/url

D7

// --- Add image filed in side content type to show image banner for every path--
//----- Add Computed field and write code inside input field  -----
  $abc = drupal_get_destination();
  $entity_field[0]['value'] = $abc['destination'];
//--- This is in output field of computed field----
  $display_output = $entity_field_item['value'];

// --- Create a view block
// --- Add 'image field' in views field to show for particular path
// --- Add 'node edit' field for edit added image

//--- Views argument (return php value) return current url path ----
 return $_GET['q'];
 

//--Write code inside view empty text for default image if image is not added for particular path---
(img src="")

$abc = drupal_get_destination();
if( user_access('create',$account = NULL) ) {
(anchor tag start) href="/node/add/(content type name)?destination=(php tag start)print $abc['destination']; (php tag end)">Add Image(anchor tag end)
}