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PHP Workshop ‹#› PHP Data Object (PDO). PHP Workshop ‹#› What is PDO? PDO is a PHP extension to formalise PHP's database connections by creating a uniform.

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Presentation on theme: "PHP Workshop ‹#› PHP Data Object (PDO). PHP Workshop ‹#› What is PDO? PDO is a PHP extension to formalise PHP's database connections by creating a uniform."— Presentation transcript:

1 PHP Workshop ‹#› PHP Data Object (PDO)

2 PHP Workshop ‹#› What is PDO? PDO is a PHP extension to formalise PHP's database connections by creating a uniform interface. This allows developers to create code which is portable across many databases and platforms. PDO is not just another abstraction layer like PEAR DB or ADOdb.

3 PHP Workshop ‹#› Why use PDO? Portability Performance Power Easy Runtime Extensible

4 PHP Workshop ‹#› What databases does it support? Microsoft SQL Server / Sybase Firebird / Interbase DB2 / INFORMIX (IBM) MySQL OCI (Oracle Call Interface) ODBC PostgreSQL SQLite

5 PHP Workshop ‹#› DSNs In general drivername: mysql:host=name;dbname=dbname odbc:odbc_dsn oci:dbname=dbname;charset=charset sqlite:/path/to/db/file sqlite::memory:

6 PHP Workshop ‹#› Connect to MySQL

7 PHP Workshop ‹#› Connect to SQLite (file)

8 PHP Workshop ‹#› Connect to SQLite (memory)

9 PHP Workshop ‹#› Connect to Oracle

10 PHP Workshop ‹#› Connect to ODBC

11 PHP Workshop ‹#› Close a Database Connection

12 PHP Workshop ‹#› Persistent PDO Connection Connection stays alive between requests $dbh = new PDO($dsn, $user, $pass, array( PDO_ATTR_PERSISTENT => true ) );

13 PHP Workshop ‹#› PDO Query (INSERT)

14 PHP Workshop ‹#› PDO Query (UPDATE)

15 PHP Workshop ‹#› PDO Query (SELECT)

16 PHP Workshop ‹#› Error Handling (1)

17 PHP Workshop ‹#› Error Handling (2)

18 PHP Workshop ‹#› Error Handling (3)

19 PHP Workshop ‹#› Error Handling (4)

20 PHP Workshop ‹#› Prepared statements

21 PHP Workshop ‹#› Transactions

22 PHP Workshop ‹#› Get Last Insert Id

23 PHP Workshop ‹#› Benchmark MySQL SELECT Benchmark Results, 1000 Requests LibraryConcurrencyTotal TimeRequests/Sec.Speedup ADOdb120.90/sec47.84- PDO10.73/sec1358.62+2840% ADOdb5010.78/sec99.23- PDO500.54/sec1850.90+1865% ADOdb10010.44/sec95.78- PDO1000.53/sec1869.33+1952%

24 PHP Workshop ‹#› Questions

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