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<?php
/*
* SCROTT IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* For more information, please refer to UNLICENSE
*/
/*
* This class provides a common interface to a database. Scrott provides
* facilities for interacting with any DBMS that we can use in PHP. To
* provide support for a new DBMS, extend this class and implement the
* abstract functions. Additionally, update the getInstance() function
* in this class so that the new implementation is used under appropriate
* configuration.
*/
abstract class Database
{
private static $instance = NULL;
/*
* Return the database instance object, creating it if this is the
* first call to this function. This function will need maintained
* as new DBMSs are supported.
*/
public static function getInstance() : Database
{
// todo
}
/*
* These functions are to be implemented by DBMS extensions,
* providing a uniform interface to database engines.
*/
public abstract function close();
public abstract function query(string $query) : array;
public abstract function esc(string $str) : string;
}
?>
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