PHP: Retrieves information about the most recently executed query

Description

Object oriented style (property)

mysqli

string$info;

Procedural style:

string mysqli_info ( mysqli $link )

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 above 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 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();

?>

Example #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);

?>

The above example will output:

Records: 150  Duplicates: 0  Warnings: 0

mysqli->info

mysqli_info

Description

Parameters

Return Values

Examples

See Also