我有一个非常基本的
MySQL查询,它从数据库表中读取行,并将行值添加或减去定义为$total_balance的
PHP字符串.
例如;
- $statement_details_query = MysqLi_query($con,"SELECT transaction_nominal_code,SUM(transaction_debit) as TotalDebit,SUM(transaction_credit) as TotalCredit FROM accounts_transaction GROUP BY transaction_nominal_code") or die(MysqL_error());
- while($statement_details = MysqLi_fetch_array( $statement_details_query )) {
- $balance = $statement_details['TotalCredit'] - $statement_details['TotalDebit'];
- $total_balance = $total_balance + $balance;
- }
- echo number_format($total_balance,2,'.',',');
我的问题是,-0和0之间有什么区别？
