安装/配置
PHP Manual

运行时配置

此扩展没有在 php.ini 中定义配置指令。

Tracing

You may be interested in seeing the SQL statements that are generated in order to apply changes back to the database. At the top of the SDO/DAS/Relational.php you will find a number of constants which control whether the process of constructing and executing the SQL statements is to be traced. Try setting DEBUG_EXECUTE_PLAN to TRUE to see the generated SQL statements.


安装/配置
PHP Manual