$this->sqlStatements of type string[] is incompatible with the type string expected by parameter $query of Doctrine\DBAL\Connection::executeUpdate().
(
Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-type annotation
The expression return $conn->executeUpd...ments, $params, $types) returns the type integer which is incompatible with the return type mandated by Doctrine\ORM\Query\Exec\...tSqlExecutor::execute() of Doctrine\DBAL\Driver\Statement.
In the issue above, the returned value is violating the contract defined by the
mentioned interface.
Let's take a look at an example:
interfaceHasName{/** @return string */publicfunctiongetName();}className{public$name;}classUserimplementsHasName{/** @return string|Name */publicfunctiongetName(){returnnewName('foo');// This is a violation of the ``HasName`` interface// which only allows a string value to be returned.}}
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..