php-symfonyHow to use the Query Builder in PHP Symfony?
The Query Builder in PHP Symfony is a powerful tool for creating and executing database queries. It allows you to easily create complex SQL queries without having to write raw SQL.
Example
$qb = $this->createQueryBuilder('u');
$qb->select('u.name')
->where('u.age > :age')
->setParameter('age', 18);
This example will generate the following SQL query:
SELECT u.name
FROM users u
WHERE u.age > 18
Code explanation
$qb = $this->createQueryBuilder('u');
- creates a new query builder object$qb->select('u.name')
- selects thename
column from theusers
table->where('u.age > :age')
- adds aWHERE
clause to the query->setParameter('age', 18)
- sets theage
parameter to18
Helpful links
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