Php questions about database modification and deletion

Php about database modification and deletion problems in php use MYSQL database to delete and modify posts. what should I do? A: Thank you. Generally, the Post id is read, then, delete the post based on the post id parameter on the input deletion operation page ., Use three SQL statements to complete INSERTINTO 'Te' ('1', '2', '3', php about database modification and deletion
How can I delete and modify a post using the MYSQL database in php? A: Thank you.

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Generally, the Post id is read and then deleted based on the post id parameter on the input deletion operation page.
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Complete with three SQL statements

Insert into 'Te' ('1', '2', '3', '4', '5') VALUES ('1', '2', '3 ', '4', '5 ');
UPDATE 'Te' SET '2' = 'x', '3' = 'x ', '4' = 'X' WHERE '1' = '1' AND '2' = '2' AND '3' = '3' AND '4' = '4' AND '5' = '5' LIMIT 1;
Delete from 'Te' WHERE '1' = '1' AND '2' = 'x' AND '3' = 'x' AND '4' = 'x' AND '5' '= '5' LIMIT 1;
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Discussion
Generally, the Post id is read and then deleted based on the post id parameter on the input deletion operation page.

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Obtain the primary key
Delete from tablename where id =?