[PHP] Zend_Db (Zend Framework)

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[PHP] Zend_Db (Zend Framework)

  1. 1. Zend Database Buzoo PHP Lecture By : Tya Herlina
  2. 2. Definition Zend_Db and its related classes provide a simple SQL database interface for Zend Framework.
  3. 3. Zend_Db_Adapter Zend_Db_Adapter is the basic class you use to connect your PHP application to an RDBMS. There is a different Adapter class for each brand of RDBMS.
  4. 4. Zend_Db_Adapter (cont’d) RDBMS Adapter IBM DB2 Pdo_ibm MariaDB Pdo_mysql MySQL Pdo_mysql Microsoft SQL Server Pdo_dblib Oracle Pdo_oci PostgreSQL Pdo_pgsql SQLite Pdo_sqlite
  5. 5. Set Connection 1. 2. 3. Using a Zend_Db Adapter Constructor Using the Zend_Db Factory Using Zend_Config with the Zend_Db Factory
  6. 6. 1. Using a Zend_Db Adapter Constructor $db = new Zend_Db_Adapter_Pdo_Mysql(array( ’host’ => ’buzoo.biz’, ’username’ => ’root’, ’password’ => ’’, ’dbname’ => ’app_geshucloud’ ));
  7. 7. 2. Using the Zend_Db Factory $db = Zend_Db::factory('Pdo_Mysql', array( ’host’ => ’buzoo.biz’, ’username’ => ’root’, ’password’ => ’’, ’dbname’ => ’app_geshucloud’ ));
  8. 8. 3. Using Zend_Config with the Zend_Db Factory database.host database.username database.password database.dbname = = = = “buzoo.biz“ “root“ “ “app_geshucloud“ $config = new Zend_Config_Ini(“path/to/config.ini“); $db = Zend_Db::factory(‘Pdo_Mysql‘, $config->database);
  9. 9. Set Connection Zend_Db_Table_Abstract::setDefaultAdapter ($db); Get Connection public function db() { return Zend_Db_Table_Abstract::getDefaultAdapter(); }
  10. 10. Reading Query Results 1. 2. 3. 4. 5. 6. Fetching a Complete Result Set Fetching a Single Row from a Result Set Fetching a Single Scalar from a Result Set Fetching a Result Set as an Associative Array Fetching Key-Value Pairs from a Result Set Fetching a Single Column from a Result Set
  11. 11. 1. Fetching a Complete Result Set $models = $this->db()->fetchAll( “SELECT * FROM `dtb_customer`” ); print_r($models); echo $models[0][`customerID`]; //44 Array ( [0] => Array ( [customerID] [customerName] [customerAddr] [customerPhone] [create_date] [update_date] => => => => => => 44 Adisti Prihartini Maleo 345 Bintan 2390554 2012-10-30 14:29:36 2012-11-27 16:04:45 [customerID] [customerName] [customerAddr] [customerPhone] [create_date] [update_date] => => => => => => 45 Angela Nayoan Van Heutz Boulevard 53 Batavia 2140 2012-10-30 14:29:36 2012-11-27 16:04:45 ) [1] => Array ( ) )
  12. 12. 2. Fetching a Single Row from a Result Set $models = $this->db()->fetchRow( “SELECT * FROM `dtb_customer` LIMIT 1” ); print_r($models); echo $models[`customerID`]; //44 Array ( [customerID] [customerName] [customerAddr] [customerPhone] [create_date] [update_date] ) => => => => => => 44 Adisti Prihartini Maleo 345 Bintan 2390554 2012-11-05 10:09:14 2012-11-21 10:35:45
  13. 13. 3. Fetching a Single Scalar from a Result Set $models = $this->db()->fetchOne( “SELECT `customerID` FROM `dtb_customer` LIMIT 1” ); print_r($models); echo $models[`customerID`]; 44
  14. 14. Modifying Data to the Database 1. 2. 3. Inserting Data Updating Data Deleting Data
  15. 15. 1. Inserting Data $this->db()->insert(‘dtb_room_facility‘, array( ‘room_id‘ => 99, ‘facility_id‘ => 99 )); echo $this->db()->lastInsertId(); //5 $model = new Dao_RoomFacility(); $new_id = $model->insert(array( ‘room_id‘ => 99, ‘facility_id‘ => 99 )); echo $new_id; //5
  16. 16. 2. Updating Data $update_id = $this->db()->update('dtb_room_facility', array( 'room_id' => 999, 'facility_id' => 999 ), 'id = 999'); echo $update_id; //1 $model = new Dao_RoomFacility(); $update_id = $model->update( array( 'room_id' => 899, 'facility_id' => 899 ), 'id = 899'); echo $update_id; //1
  17. 17. 3. Deleting Data $delete_id = $this->db()->delete( '`dtb_room_facility`', '`id` = 999' ); echo $delete_id; //1 $model = new Dao_RoomFacility(); $delete_id = $model->delete( '`id` = 899'); echo $delete_id; //1
  18. 18. Preventing SQL Injection $name = "O'Reilly"; $sql = "SELECT * FROM `dtb_customer` WHERE `customerName` = '$name'"; echo $sql; // SELECT * FROM `dtb_customer` WHERE `customerName` = 'O'Reilly'
  19. 19. Quoting Values and Identifiers 1. 2. 3. Using quote() Using quoteInto() Using quoteIdentifier()
  20. 20. 1. Using quote() $name = $this->db()->quote("O'Reilly"); $sql = "SELECT * FROM `dtb_customer` WHERE `customerName` = $name"; echo $sql; // SELECT * FROM `dtb_customer` WHERE `customerName` = 'O'Reilly' $phone = $this->db()->quote("1234", "INTEGER"); $sql = "SELECT * FROM `dtb_customer` WHERE `customerPhone` = $phone"; echo $sql; // SELECT * FROM `dtb_customer` WHERE `customerPhone` = 1234
  21. 21. 2. Using quoteInto() $name = "O'Reilly"; $sql = $this->db()->quoteInto( "SELECT * FROM `dtb_customer` WHERE `customerName` = ?", $name ); echo $sql; // SELECT * FROM `dtb_customer` WHERE `customerName` = 'O'Reilly'
  22. 22. Notes  Always store your logic query in Models/Logic/your_logic.php  Minimizing the possibility of SQL injection with quoting values  When creating logic, please reduce the possibility of errors  Always return your logic result value  Always check the existing logic before you make yours
  23. 23. Thank you~  Question?  Share?  Critics?  Advice?

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