Filter yoast canonical add_action priority [closed]

Question

I'm trying to look around over Google of how to hook the add_action and change the priority of Yoast Canonical,

from: 20

add_action( 'wpseo_head', array( $this, 'canonical' ), 20 );

to: 55

add_action( 'wpseo_head', array( $this, 'canonical' ), 55 );

This affect the position from the frontend head tag section. Is there a way to manipulate this function to hook it inside my functions.php file?

Note: I tried to copy and paste this to my function, but hook is not reaching the action.

Updated Response Fig. 1

global $wpseo;
$wpseo = new WPSEO_Frontend();

remove_action( 'wpseo_head', array( $wpseo, 'canonical' ), 20 );
add_action( 'wpseo_head', array( $wpseo, 'canonical' ), 55 );

I tried using this as I can see the WPSEO_Frontend was the declared class where the add_action( 'wpseo_head', array( $wpseo, 'canonical' ), 20 ); is located... But ended-up to broken site.

Answer 1

You would need to look in the Yoast plugin to find what the global class is that is referred to as $this, so that you can access it outside the class context. If it was for example, $wpseo, in your functions.php you could do something like:

$wpseo = WPSEO_Frontend::get_instance();
remove_action( 'wpseo_head', array( $wpseo, 'canonical' ), 20 );
add_action( 'wpseo_head', array( $wpseo, 'canonical' ), 55 );

To find the class name to use, look for the name of the class that contains the add_action with $this in it as you have already, and then get the instance of that class, like $wpseo = WPSEO_Frontend::get_instance();

UPDATE changed code to reflect actual found and tested class instance.