Updates the maximum user level for the user.

Description

Updates the ‘user_level’ user metadata (includes prefix that is the database table prefix) with the maximum user level. Gets the value from the all of the capabilities that the user has.

Source

public function update_user_level_from_caps() {
	global $wpdb;
	$this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 );
	update_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level', $this->user_level );
}

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