mysqli_stmt::$insert_id

mysqli_stmt_insert_id

(PHP 5, PHP 7, PHP 8)

mysqli_stmt::$insert_id -- mysqli_stmt_insert_id — Get the ID generated from the previous INSERT operation

说明

面向对象风格

int|string $mysqli_stmt->insert_id;

过程化风格

mysqli_stmt_insert_id(mysqli_stmt $statement): int|string

警告

本函数还未编写文档，仅有参数列表。

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User Contributed Notes 2 notes

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hgernhardt at tcnewengland dot org ¶

11 years ago


It should be noted that using mysqli_stmt->insert_id will not result in a unique ID being returned for each execution of a prepared insert statement.  In practice, it appears that the first insertion ID is returned.  If you are performing multiple inserts with the same prepared statement (one invocation of mysqli_stmt::prepare and multiple invocations of mysqli_stmt::execute() for a given statement), and need to keep the unique ID for each insert, use mysqli_connection->insert_id.

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Aurelien Marchand ¶

7 years ago


for those with zerofilled IDs beware as mysqli_stmt::$insert_id will return an integer. In other words, if the ID returned from your query was #000099, the value produced by mysqli_stmt::$insert_id is now #99.

I have not found a way to fix this beside using sprintf('%06d',$id) but this assumes you know in advance the size of the ID beforehand.

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官方地址：https://www.php.net/manual/en/mysqli-stmt.insert-id.php

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mysqli_stmt::$insert_id

mysqli_stmt_insert_id

说明

User Contributed Notes 2 notes