PHP Manual
mysqli
Retrieves information about the most recently executed query

mysqli::$info

mysqli_info

(PHP 5, PHP 7)

mysqli::$info -- mysqli_info — Retrieves information about the most recently executed query

Description

Object oriented style

string $mysqli->info;

Procedural style

mysqli_info ( mysqli $link ) : string

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

**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

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

Parameters

link: Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

Return Values

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

Examples

Example #1 $mysqli->info example

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();?>

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);?>

The above examples will output:

Records: 150  Duplicates: 0  Warnings: 0

Php/docs/mysqli.info

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