src/Thybag/SharePointAPI.php
public function getVersions ($list, $id, $field = null) {
	    return $this->getFieldVersions($list, $id, $field);
	}
public function getVersions ($list, $id, $field = null) {
	    return $this->getFieldVersions($list, $id, $field);
	}
public function getVersions ( $ list , $ id , $ field = null ) { return $ this -> getFieldVersions ( $ list , $ id , $ field ) ; }
getVersions
Get previous versions of a field

@param $list Name or GUID of list
@param $id ID of item to find versions for
@param $field optional name of column to get versions for
@return array | object
getVersions Get previous versions of a field