infolock / DBHandler

DBHandler is a PHP Object that handles database connections via PDO. It is highly configurable and should save a lot of boilerplate code for working with MySQL. There is still yet some work that can be done with it, so feel free to do so.

DBHandler

DBHandler is a PHP Object that handles database connections via PDO. It is highly configurable and should save a lot of boilerplate code for working with MySQL. There is still yet some work that can be done with it, so feel free to do so.

Requirements

You should be using the latest and greatest version of PHP. However, this object will work with versions PHP 5.1+. If you choose to use PHP < 5.3, you should not be surprised to find that you'll need to remove the namespace usages out (and that the examples will also need to have namespace usage removed.).

Methods

####__construct( array $db_info ) Note that this is public rather than private ( in case you don't want to use the singleton stuff )

####getInstance() (static) Main entry point for obtaining an instance to the Default DB Singleton instance

####getInstanceUsingDbInfo( array $db_info ) (static) For obtaining a singleton instance to a specific Database with info

####closeInstanceUsingDbName( $db_name ) (static) Used to close the instance connection and free up the object.

####query( $sql ) Convience method to PDO query.

####fetchRow( $sql, $fetch_style ) Convience method for issuing a query, and then fetching a single row from a select statement.

####fetchRows( $sql, $fetch_style ) Convience method for issuing a query, and then fetchAll for all rows found from a select statement.

####fetchColumn( $sql, $column ) Convience method for issuing a query, and then fetchColumn to obtain a specific column for a select statement.

####prepare( $sql ) Convience method to the PDO prepare method.

####begin() Convience method to the PDO begin method for InnoDB transations

####commit() Convience method to the PDO commit method for InnoDB transactions

####rollback() Convience method to the PDO rollback method for InnoDB transactions

####lastInsertId() Convience method to the PDO lastInsertId method

####isValidTable( $table ) Helper method to check wether a the table name passed in ($table) is a valid table for the current instnace being used.

####isValidColumn( $table, $column ) Helper method to check wether a the column ($column) name passed in for a table ($table) is a valid column using the current database instance connection.

####infoForTable( $table ) Helper method to obtain table information schema for the supplied table ($table)

Examples

Check out the included examples folder for how to use this tool.

• examples/basic/example.php - A very basic example
• examples/subclass/example.php - An example showing how to subclass the Handler base class
• examples/advanced/example.php - Includes a more advanced example using an autoloader and namespace folder structure.

License

The MIT License (MIT)