mysqli::$info

(PHP 5, PHP 7)

Retrieves information about the most recently executed query

string mysqli_info ( mysqli $link )

Object oriented style

string $mysqli->info;

Procedural style

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()

Returns:

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

Examples:

$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