Please tell me how to delete a record using native PHP PDO. It has been unsuccessful and I don't know where the mistake is.-PHP Chinese Network Q&A

Delete Please tell me how to delete a record using native PHP PDO. It has been unsuccessful and I don't know where the mistake is.-PHP Chinese Network Q&A

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Please tell me how to delete a record using native PHP PDO. It has been unsuccessful and I don't know where the mistake is.

志远电脑小马哥 2022-05-11 20:38:55

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Ask for advice on native PHP PDO deleting a record has been unsuccessful. I don’t know where the mistake is. I have been troubled for a long time. Please give me some advice.

You need to delete a piece of data through GET,

Delete

exec($sql); print("Deleted $count rows.\n"); } ?>

The result is wrong, the error message is:

Fatal error: Uncaught Error: Call to a member function exec() on null in D:\phpstudy_pro\WWW\admin\cmd. php:32 Stack trace: #0 D:\phpstudy_pro\WWW\admin\cmd.php(22): delInfo() #1 {main} thrown in D:\phpstudy_pro\WWW\admin\cmd.php on line 32

志远电脑小马哥

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志远电脑小马哥2022-05-11 20:48:01 1 floor

$sql="DELETE From ".$t." where id=".$tid;

The id here is an input error. Normally it should be tid. The problem is not here. After the interruption, the sql is normal. DELETE From link where id=69 The database has this record.

$count=$conn->exec($sql); //这个是出错行。

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reply Didn't you pass $conn into the delInfo method? Didn't you see an error saying that the exec member method could not be found?

ABOUT author 2022-05-27 09:52:06