Oxyscripts - PHP Development, tutorials, articles, news, programming, scripts and forums.

Description

To connect to a database through PEAR::MDB, you have to create a valid DSN - data source name. This DSN consists in the following parts:

phptype: Database backend used in PHP (i.e. mysql , odbc etc.)

dbsyntax: Database used with regards to SQL syntax etc.

protocol: Communication protocol to use ( i.e. tcp, unix etc.)

hostspec: Host specification (hostname[:port])

database: Database to use on the DBMS server

username: User name for login

password: Password for login

proto_opts: Maybe used with protocol

The format of the supplied DSN is in its fullest form:
phptype(dbsyntax)://username:password@protocol+hostspec/database
Most variations are allowed:
phptype://username:password@protocol+hostspec:110//usr/db_file.mdb phptype://username:password@hostspec/database_name phptype://username:password@hostspec phptype://username@hostspec phptype://hostspec/database phptype://hostspec phptype(dbsyntax) phptype
The currently supported database backends are:
mysql -> MySQL pgsql -> PostgreSQL ibase -> InterBase mssql -> Microsoft SQL Server oci8 -> Oracle 7/8/8i fbsql -> FrontBase

With an up-to-date version of MDB, you can use a second DSN format
phptype(syntax)://user:pass@protocol(proto_opts)/database

Example 26-1. Connect to database through a socket
mysql://user@unix(/path/to/socket)/pear

Example 26-2. Connect to database on a non standard port
pgsql://user:pass@word@tcp(oxyscrip.ipowermysql.com:5555)/pear

Warning

Please note, that some features may be not supported by all database backends. Please refer to the PEAR MDB extensions status document located at: <pear base dir>/MDB/STATUS to get a detailed list about what features are supported by which backend.

Introduction - DSN

Description