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Natively Connect to Trello Data in PHP

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

Drop the CData ODBC Driver for Trello into your LAMP or WAMP stack to build Trello-connected Web applications. This article shows how to use PHP's ODBC built-in functions to connect to Trello 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.

Trello uses token-based authentication to grant third-party applications access to their API. When a user has granted an application access to their data, the application is given a token that can be used to make requests to Trello's API.

Trello's API can be accessed in 2 different ways. The first is using Trello's own Authorization Route, and the second is using OAuth1.0.

  • Authorization Route: At the moment of registration, Trello assigns an API key and Token to the account. See the Help documentation for information on how to connect via the Authorization route.
  • OAuth Route: Similar to using Authorization, OAuth creates an Application Id and Secret when you create your account. See the Help documentation for information on how to to connect.

Establish a Connection

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

$conn = odbc_connect("CData ODBC Trello 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.

$conn = odbc_pconnect("CData ODBC Trello Source","user","password"); ... odbc_close($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 Boards WHERE Name = ?");

Execute Queries

Execute prepared statements with odbc_execute.

$conn = odbc_connect("CData ODBC Trello Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM Boards WHERE Name = ?"); $success = odbc_execute($query, array('Public Board'));

Execute nonparameterized queries with odbc_exec.

$conn = odbc_connect("CData ODBC Trello Source","user","password"); $query = odbc_exec($conn, "SELECT BoardId, Name FROM Boards WHERE Name = 'Public Board'");

Process Results

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

$conn = odbc_connect("CData ODBC Trello data Source","user","password"); $query = odbc_exec($conn, "SELECT BoardId, Name FROM Boards WHERE Name = 'Public Board'"); while($row = odbc_fetch_array($query)){ echo $row["BoardId"] . "\n"; }

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

$conn = odbc_connect("CData ODBC Trello data Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM Boards WHERE Name = ?"); $success = odbc_execute($query, array('Public Board')); 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 Trello-specific adaptations of the PHP community documentation for all ODBC functions.