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Natively Connect to Phoenix Data in PHP


The CData ODBC driver for Phoenix enables you to create PHP applications with connectivity to Phoenix data. Leverage the native support for ODBC in PHP.

Drop the CData ODBC Driver for Phoenix into your LAMP or WAMP stack to build Phoenix-connected Web applications. This article shows how to use PHP's ODBC built-in functions to connect to Phoenix data, execute queries, and output the results.

Configure a DSN

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

Connect to Apache Phoenix via the Phoenix Query Server. Set the Server and Port (if different from the default port) properties to connect to Apache Phoenix. The Server property will typically be the host name or IP address of the server hosting Apache Phoenix.

Authenticating to Apache Phoenix

By default, no authentication will be used (plain). If authentication is configured for your server, set AuthScheme to NEGOTIATE and set the User and Password properties (if necessary) to authenticate through Kerberos.

Establish a Connection

Open the connection to Phoenix by calling the odbc_connect or odbc_pconnect methods. To close connections, use odbc_close or odbc_close_all.

$conn = odbc_connect("CData ODBC ApachePhoenix Source","user","password");

Connections opened with odbc_connect are closed when the script ends. Connections opened with the odbc_pconnect method are still open after the script ends. This enables other scripts to share that connection when they connect with the same credentials. By sharing connections among your scripts, you can save system resources, and queries execute faster.

$conn = odbc_pconnect("CData ODBC ApachePhoenix Source","user","password"); ... odbc_close($conn); //persistent connection must be closed explicitly

Create Prepared Statements

Create prepared statements and parameterized queries with the odbc_prepare function.

$query = odbc_prepare($conn, "SELECT * FROM MyTable WHERE Id = ?");

Execute Queries

Execute prepared statements with odbc_execute.

$conn = odbc_connect("CData ODBC ApachePhoenix Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM MyTable WHERE Id = ?"); $success = odbc_execute($query, array('123456'));

Execute nonparameterized queries with odbc_exec.

$conn = odbc_connect("CData ODBC ApachePhoenix Source","user","password"); $query = odbc_exec($conn, "SELECT Id, Column1 FROM MyTable WHERE Id = '123456'");

Process Results

Access a row in the result set as an array with the odbc_fetch_array function.

$conn = odbc_connect("CData ODBC Phoenix data Source","user","password"); $query = odbc_exec($conn, "SELECT Id, Column1 FROM MyTable WHERE Id = '123456'"); while($row = odbc_fetch_array($query)){ echo $row["Id"] . "\n"; }

Display the result set in an HTML table with the odbc_result_all function.

$conn = odbc_connect("CData ODBC Phoenix data Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM MyTable WHERE Id = ?"); $success = odbc_execute($query, array('123456')); if($success) odbc_result_all($query);

More Example Queries

You will find complete information on the driver's supported SQL in the help documentation. The code examples above are Phoenix-specific adaptations of the PHP community documentation for all ODBC functions.

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Apache Phoenix Icon Phoenix ODBC Driver

The Phoenix ODBC Driver is a powerful tool that allows you to connect with HBase through Apache Phoenix, directly from any applications that support ODBC connectivity.

Access Phoenix like you would a relational database - read, write, and update through a standard ODBC Driver interface.

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