Neo4j Bolt wrapper

This library contains wrapper class to cover basic functionality with Bolt library.

Instalation

Run the following command in your project to install the latest applicable version of the package:

composer require stefanak-michal/neo4j-bolt-wrapper

Packagist

Usage

Neo4j::$auth = ['scheme' => 'basic', 'principal' => 'neo4j', 'credentials' => 'password'];
$rows = Neo4j::query('RETURN $n as num', ['n' => 123]);

You can also use methods like queryFirstField and queryFirstColumn.

If you want to learn more about available query parameters check Bolt library readme.

Database server

Default connection is executed on 127.0.0.1:7687. You can change target server with static properties:

Neo4j::$host = 'neo4j+s://demo.neo4jlabs.com';
Neo4j::$port = 7687;

Transactions

Transaction methods are:

Neo4j::begin();
Neo4j::commit();
Neo4j::rollback();

Log handler

You can set callable function into Neo4j::$logHandler which is called everytime query is executed. Method will receive executed query with additional statistics.

Check class property annotation for more information.

Error handler

Standard behaviour on error is trigger_error with E_USER_ERROR. If you want to handle Exception by yourself you can set callable function into Neo4j::$errorHandler.

Statistics

Wrapper offers special method Neo4j::statistic(). This method returns specific information from last executed query.

Check method annotation for more information.

Support