(PHP 5, PHP 7, PHP 8)
mysqli::real_query -- mysqli_real_query — 执行一个mysql查询
面向对象风格
过程化风格
对数据库执行单条查询，其结果可以使用 mysqli_store_result() 或 mysqli_use_result() 检索或存储。
If the query contains any variable input then parameterized prepared statements should be used instead. Alternatively, the data must be properly formatted and all strings must be escaped using the mysqli_real_escape_string() function.
为了确定给定的查询是否应返回结果集，参阅 mysqli_field_count()。
If mysqli error reporting is enabled (MYSQLI_REPORT_ERROR) and the requested operation fails,
a warning is generated. If, in addition, the mode is set to MYSQLI_REPORT_STRICT,
a mysqli_sql_exception is thrown instead.