src/Jira/Api.php
public function getTransitions($issue_key, array $params)
	{
		return $this->api(self::REQUEST_GET, sprintf('/rest/api/2/issue/%s/transitions', $issue_key), $params);
	}
public function getTransitions($issue_key, array $params)
	{
		return $this->api(self::REQUEST_GET, sprintf('/rest/api/2/issue/%s/transitions', $issue_key), $params);
	}
public function getTransitions ( $ issue_key , array $ params ) { return $ this -> api ( self :: REQUEST_GET , sprintf ( '/rest/api/2/issue/%s/transitions' , $ issue_key ) , $ params ) ; }
Get available transitions for a ticket.

@param string $issue_key Issue key should be "YOURPROJ-22".
@param array  $params    Params.

@return Result|false
Get available transitions for a ticket .