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phpstan-dba: PHPStan based SQL static analysis and type inference for the database access layer

phpstan-dba makes your phpstan static code analysis jobs aware of datatypes within your database. With this information at hand we are able to detect type inconsistencies between your domain model and database-schema. Additionally errors in code handling the results of sql queries can be detected.

This extension provides the following features, as long as you stick to the rules:

In case you are using Doctrine ORM, you might use phpstan-dba in tandem with phpstan-doctrine.

Note

At the moment only MySQL/MariaDB and PGSQL databases are supported. Technically it's not a big problem to support other databases though.

Talks

phpstan-dba - check your sql queries like a boss May 2023, at PHP Usergroup in Frankfurt Main (Germany).

DEMO

see the 'Files Changed' tab of the DEMO-PR for a quick glance.

💌 Support phpstan-dba

Consider supporting the project, so we can make this tool even better even faster for everyone.

Installation

First, use composer to install:

composer require --dev staabm/phpstan-dba

Second, create a phpstan-dba-bootstrap.php file, which allows to you to configure phpstan-dba (this optionally includes database connection details, to introspect the database; if you would rather not do this see Record and Replay:

<?php // phpstan-dba-bootstrap.php

use staabm\PHPStanDba\DbSchema\SchemaHasherMysql;
use staabm\PHPStanDba\QueryReflection\RuntimeConfiguration;
use staabm\PHPStanDba\QueryReflection\MysqliQueryReflector;
use staabm\PHPStanDba\QueryReflection\QueryReflection;
use staabm\PHPStanDba\QueryReflection\ReplayAndRecordingQueryReflector;
use staabm\PHPStanDba\QueryReflection\ReplayQueryReflector;
use staabm\PHPStanDba\QueryReflection\ReflectionCache;

require_once __DIR__ . '/vendor/autoload.php';

$cacheFile = __DIR__.'/.phpstan-dba.cache';

$config = new RuntimeConfiguration();
// $config->debugMode(true);
// $config->stringifyTypes(true);
// $config->analyzeQueryPlans(true);
// $config->utilizeSqlAst(true);

// TODO: Put your database credentials here
$mysqli = new mysqli('hostname', 'username', 'password', 'database');

QueryReflection::setupReflector(
    new ReplayAndRecordingQueryReflector(
        ReflectionCache::create(
            $cacheFile
        ),
        // XXX alternatively you can use PdoMysqlQueryReflector instead
        new MysqliQueryReflector($mysqli),
        new SchemaHasherMysql($mysqli)

    ),
    $config
);

Note

Configuration for PGSQL is pretty similar

Third, create or update your phpstan.neon file so bootstrapFiles includes phpstan-dba-bootstrap.php.

If you are not using phpstan/extension-installer, you will also need to include dba.neon.

Your phpstan.neon might look something like:

parameters:
  level: 8
  paths:
    - src/
  bootstrapFiles:
    - phpstan-dba-bootstrap.php

includes:
  - ./vendor/staabm/phpstan-dba/config/dba.neon

Finally, run phpstan, e.g.

./vendor/bin/phpstan analyse -c phpstan.neon

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