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                [TOC] #### getLastSql()方法獲取數據模型層的sql腳本 模型調試 在模型操作中 ,為了更好的查明錯誤,經常需要查看下最近使用的SQL語句,我們可以用getLastsql方法來輸出上次執行的sql語句。例如: ~~~ $User = M("User"); // 實例化User對象 $User->find(1); echo $User->getLastSql(); ~~~ 輸出結果是 `SELECT * FROM think_user WHERE id = 1` 新版(thinkphp3.1)每個模型都使用獨立的最后SQL記錄,互不干擾,但是可以用空模型的getLastSql方法獲取全局的最后SQL記錄。 ~~~ $User = M("User"); // 實例化User模型 $Info = M("Info"); // 實例化Info模型 $User->find(1); $Info->find(2); echo M()->getLastSql(); echo $User->getLastSql(); echo $Info->getLastSql(); ~~~ 輸出結果是 ~~~ SELECT * FROM think_info WHERE id = 2 SELECT * FROM think_user WHERE id = 1 SELECT * FROM think_info WHERE id = 2 ~~~ getLastSql方法只能獲取最后執行的sql記錄,如果需要了解更多的SQL日志,可以通過查看當前的頁面Trace或者日志文件。 #### fetchsql()方法獲取數據模型層的查詢腳本 ~~~ M('user')->fetchsql(true)->where('user_id = %d', $v['user_id'])->find() ~~~
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