Natively Connect to Google Calendar Data in PHP

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

You can connect to Google APIs on behalf of individual users or on behalf of a domain. Google uses the OAuth authentication standard. See the "Getting Started" section of the help documentation for a guide.

Establish a Connection

Open the connection to Google Calendar by calling the or methods. To close connections, use or .

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

Connections opened with are closed when the script ends. Connections opened with the 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.

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

Create Prepared Statements

Create prepared statements and parameterized queries with the function.

$query = odbc_prepare($conn, "SELECT * FROM VacationCalendar WHERE SearchTerms = ?");

Execute Queries

Execute prepared statements with .

$conn = odbc_connect("CData ODBC GoogleCalendar Source","user","password");
$query = odbc_prepare($conn, "SELECT * FROM VacationCalendar WHERE SearchTerms = ?");
$success = odbc_execute($query, array('beach trip'));
 

Execute nonparameterized queries with .

$conn = odbc_connect("CData ODBC GoogleCalendar Source","user","password");
$query = odbc_exec($conn, "SELECT Summary, StartDateTime FROM VacationCalendar");
 

Process Results

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

$conn = odbc_connect("CData ODBC Google Calendar data Source","user","password");
$query = odbc_exec($conn, "SELECT Summary, StartDateTime FROM VacationCalendar");
while($row = odbc_fetch_array($query)){
 echo $row["Summary"] . "\n";
}

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

$conn = odbc_connect("CData ODBC Google Calendar data Source","user","password");
$query = odbc_prepare($conn, "SELECT * FROM VacationCalendar WHERE SearchTerms = ?");
$success = odbc_execute($query, array('beach trip'));
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 Google Calendar-specific adaptations of the PHP community documentation for all ODBC functions.