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                ### 事務控制 **事務控制** **參數** 1\. 事務回退 rollBack 2\. 開啟事務 rollBack 3\. 提交事務 rollBack ~~~ /** * 事務回退 */ function rollBack() { $this->_db->query ( "ROLLBACK" ); } /** * 開啟事務 */ function start_d() { //echo "START".self::$transaction_tag." "; if(self::$transaction_tag==0) { $this->_db->query ( "START TRANSACTION" ); }; self::$transaction_tag++; } /** * 提交事務 */ function commit_d() { //echo "COMMIT".self::$transaction_tag." "; if(self::$transaction_tag==1){ $this->_db->query ( "COMMIT" ); } self::$transaction_tag--; } ~~~
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