php - Using raw MYSQL queries in symfony -

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i'm working symfony instead of using doctrine use raw mysql queries.

$query1 = "select sport_id coach id = $id"; $statement1 = $connection->query($query1); $statement1->execute(); $sport_id = $statement1->fetch();

for above query gives error "notice: array string conversion 500 internal server error - contexterrorexception"

can please explain wrong this? i'm beginner in symfony


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