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# mysqli_info

(PHP 5)

mysqli_info

(no version information, might be only in CVS)

mysqli->info -- Retrieves information about the most recently executed query

## Description

Procedural style:

string mysqli_info ( mysqli link )

Object oriented style (property)

class mysqli {
string info
}

The mysqli_info() function returns a string providing information about the last query executed. The nature of this string is provided below:

表格 1. Possible mysqli_info return values

Query type | Example result string
--- | ---
INSERT INTO...SELECT... | Records: 100 Duplicates: 0 Warnings: 0
INSERT INTO...VALUES (...),(...),(...) | Records: 3 Duplicates: 0 Warnings: 0
LOAD DATA INFILE ... | Records: 1 Deleted: 0 Skipped: 0 Warnings: 0
ALTER TABLE ... | Records: 3 Duplicates: 0 Warnings: 0
UPDATE ... | Rows matched: 40 Changed: 40 Warnings: 0

> 注: Queries which do not fall into one of the above formats are not supported. In these situations, mysqli_info() will return an empty string.

## 返回值

A character string representing additional information about the most recently executed query.

## 参见

mysqli_affected_rows(), mysqli_warning_count() 和 mysqli_num_rows().

## 范例

例子 1. Object oriented style

`<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$mysqli->query("CREATE TEMPORARY TABLE t1 LIKE City");
/* INSERT INTO .. SELECT */
$mysqli->query("INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
printf("%s\n", $mysqli->info);
/* close connection */
$mysqli->close();
?>`

例子 2. Procedural style

`<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
mysqli_query($link, "CREATE TEMPORARY TABLE t1 LIKE City");
/* INSERT INTO .. SELECT */
mysqli_query($link, "INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
printf("%s\n", mysqli_info($link));
/* close connection */
mysqli_close($link);
?>`

上例将输出：

    Records: 150  Duplicates: 0  Warnings: 0

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