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Natively Connect to Neo4J Data in PHP


The CData ODBC driver for Neo4J enables you to create PHP applications with connectivity to Neo4J data. Leverage the native support for ODBC in PHP.

Drop the CData ODBC Driver for Neo4J into your LAMP or WAMP stack to build Neo4J-connected Web applications. This article shows how to use PHP's ODBC built-in functions to connect to Neo4J 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.

To connect to Neo4j, set the following connection properties:

  • Server: The server hosting the Neo4j instance.
  • Port: The port on which the Neo4j service is running. The provider connects to port 7474 by default.
  • User: The username of the user using the Neo4j instance.
  • Password: The password of the user using the Neo4j instance.

Establish a Connection

Open the connection to Neo4J by calling the odbc_connect or odbc_pconnect methods. To close connections, use odbc_close or odbc_close_all.

$conn = odbc_connect("CData ODBC Neo4j 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.

$conn = odbc_pconnect("CData ODBC Neo4j Source","user","password"); ... odbc_close($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 ProductCategory WHERE CategoryOwner = ?");

Execute Queries

Execute prepared statements with odbc_execute.

$conn = odbc_connect("CData ODBC Neo4j Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM ProductCategory WHERE CategoryOwner = ?"); $success = odbc_execute($query, array('CData Software'));

Execute nonparameterized queries with odbc_exec.

$conn = odbc_connect("CData ODBC Neo4j Source","user","password"); $query = odbc_exec($conn, "SELECT CategoryId, CategoryName FROM ProductCategory WHERE CategoryOwner = 'CData Software'");

Process Results

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

$conn = odbc_connect("CData ODBC Neo4J data Source","user","password"); $query = odbc_exec($conn, "SELECT CategoryId, CategoryName FROM ProductCategory WHERE CategoryOwner = 'CData Software'"); while($row = odbc_fetch_array($query)){ echo $row["CategoryId"] . "\n"; }

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

$conn = odbc_connect("CData ODBC Neo4J data Source","user","password"); $query = odbc_prepare($conn, "SELECT * FROM ProductCategory WHERE CategoryOwner = ?"); $success = odbc_execute($query, array('CData Software')); 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 Neo4J-specific adaptations of the PHP community documentation for all ODBC functions.

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Neo4J Icon Neo4J ODBC Driver

The Neo4J ODBC Driver is a powerful tool that allows you to connect with live data from Neo4J, directly from any applications that support ODBC connectivity.

Access Neo4J data like you would a database - read Neo4J data through a standard ODBC Driver interface.

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