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Get the Report →Natively Connect to Redis Data in PHP
The CData ODBC driver for Redis enables you to create PHP applications with connectivity to Redis data. Leverage the native support for ODBC in PHP.
Drop the CData ODBC Driver for Redis into your LAMP or WAMP stack to build Redis-connected Web applications. This article shows how to use PHP's ODBC built-in functions to connect to Redis 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.
Set the following connection properties to connect to a Redis instance:
- Server: Set this to the name or address of the server your Redis instance is running on. You can specify the port in Port.
- Password: Set this to the password used to authenticate with a password-protected Redis instance , using the Redis AUTH command.
Set UseSSL to negotiate SSL/TLS encryption when you connect.
Establish a Connection
Open the connection to Redis by calling the odbc_connect or odbc_pconnect methods. To close connections, use odbc_close or odbc_close_all.
$conn = odbc_connect("CData ODBC Redis 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.
$conn = odbc_pconnect("CData ODBC Redis Source","user","password");
...
odbc_close($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 Customers WHERE Country = ?");
Execute Queries
Execute prepared statements with odbc_execute.
$conn = odbc_connect("CData ODBC Redis Source","user","password");
$query = odbc_prepare($conn, "SELECT * FROM Customers WHERE Country = ?");
$success = odbc_execute($query, array('US'));
Execute nonparameterized queries with odbc_exec.
$conn = odbc_connect("CData ODBC Redis Source","user","password");
$query = odbc_exec($conn, "SELECT City, CompanyName FROM Customers");
Process Results
Access a row in the result set as an array with the odbc_fetch_array function.
$conn = odbc_connect("CData ODBC Redis data Source","user","password");
$query = odbc_exec($conn, "SELECT City, CompanyName FROM Customers");
while($row = odbc_fetch_array($query)){
echo $row["City"] . "\n";
}
Display the result set in an HTML table with the odbc_result_all function.
$conn = odbc_connect("CData ODBC Redis data Source","user","password");
$query = odbc_prepare($conn, "SELECT * FROM Customers WHERE Country = ?");
$success = odbc_execute($query, array('US'));
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 Redis-specific adaptations of the PHP community documentation for all ODBC functions.