Question

如何将mysql insert和select语句组合成一个预准备语句？当我点击“复制”按钮时，这部分代码是否会帮助我将信息复制到数据库中？

感谢。

INSERT INTO assignment_speeches_copy (id, subject, body, tags, image)
SELECT * FROM assignment_speeches
WHERE id = $id";

$stmt = $mysqli->prepare("INSERT INTO assignment_speeches_copy VALUES (?,?,?,?,?)"); (how do I continue?)

Answer 1

你不必合并任何东西。 INSERT ... SELECT是一个简单的陈述......

$stmt = $mysqli->prepare(
    "INSERT INTO assignment_speeches_copy (id, subject, body, tags, image) 
        SELECT (id, subject, body, tags, image) 
           FROM assignment_speeches 
           WHERE id = ?"
    );

mysql插入并在准备好的语句中选择

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