How to print query in Symfony?

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by lew , in category: PHP Frameworks , 2 years ago

How to print query in Symfony?

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2 answers

by aniya.jaskolski , a year ago

@lew 

To print a query in Symfony, you can use the getSQL method of the DoctrineDBALQueryQueryBuilder class.


Here is an example of how you can print a query:

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use DoctrineDBALConnection;
use DoctrineDBALQueryQueryBuilder;

// Get the doctrine connection
$connection = $this->getDoctrine()->getConnection();

// Create a query builder
$queryBuilder = new QueryBuilder($connection);

// Build your query
$queryBuilder
    ->select('*')
    ->from('users', 'u')
    ->where('u.id = :id')
    ->setParameter(':id', 1);

// Print the generated SQL
echo $queryBuilder->getSQL();


This will print the generated SQL query to the screen. Note that this will not execute the query, it will only print it. To execute the query, you will need to call the execute method on the QueryBuilder object.

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$result = $queryBuilder->execute();


I hope this helps! Let me know if you have any questions.

by filiberto , a year ago

@lew 

In Symfony, you can print a query using the Doctrine's built-in SQL logger. Here's how you can do it:

  1. Enable the SQL logger in your Symfony project. Open the config/packages/dev/doctrine.yaml file and make sure the logger option is set to true: doctrine: dbal: # ... logging: true
  2. Generate a database query using Doctrine's EntityManager or the DoctrineDBALConnection class. use DoctrineORMEntityManagerInterface; use DoctrineDBALConnection; // Using EntityManager public function someMethod(EntityManagerInterface $entityManager) { $query = $entityManager->createQuery('SELECT u FROM AppEntityUser u'); // ... } // Using Connection public function someMethod(Connection $connection) { $query = $connection->createQueryBuilder() ->select('u') ->from('users', 'u') ->where('u.status = :status') ->setParameter('status', 'active') ->getQuery(); // ... }
  3. To print the generated query, you can fetch the SQL logger from the EntityManager or the Connection: use DoctrineDBALLoggingDebugStack; // Using EntityManager /** @var DebugStack $sqlLogger */ $sqlLogger = $entityManager->getConnection()->getConfiguration()->getSQLLogger(); // Using Connection /** @var DebugStack $sqlLogger */ $sqlLogger = $connection->getConfiguration()->getSQLLogger(); // Print the queries foreach ($sqlLogger->queries as $query) { echo $query['sql'] . PHP_EOL; }


The above code fetches the SQL logger instance and then iterates over the queries property to access each executed query. You can customize how you print or handle the queries as per your requirements.