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执行mysql事务

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function Tran( $sql ) {

mysql_query("SET AUTOCOMMIT=0");//
         $judge = 1;
         mysql_query('begin');
         foreach ($sql as $v) {
                 if ( !mysql_query($v) ) {
                         $judge = 0;
                 }
         }
         if ($judge == 0) {
                 mysql_query('rollback');
                 return false;
         }
         elseif ($judge == 1) {
                 mysql_query('commit');
                 return true;
         }
}