Which function in CodeIgniter starts a database transaction?
- $this->db->begin_transaction();
- $this->db->initiate_transaction();
- $this->db->start_transaction();
- $this->db->trans_start();
In CodeIgniter, the trans_start() function is used to initiate a database transaction. This function marks the starting point of the transaction, and any subsequent database operations will be treated as part of the transaction until it is explicitly committed or rolled back. The trans_start() function is commonly used at the beginning of a series of database operations that should be treated atomically, ensuring that they are either all successfully completed or none of them are applied.
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