mysqli
PHP-Handbuch

mysqli::$info

mysqli_info

Retrieves information about the most recently executed query

Beschreibung

Objektorientierter Stil

string$mysqli->info;

Prozeduraler Stil

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

Hinweis:

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

Parameter-Liste

link

Nur bei prozeduralem Aufruf: Ein von mysqli_connect oder mysqli_init zurückgegebenes Verbindungsobjekt.

Rückgabewerte

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

Beispiele

Beispiel #1 $mysqli->info example

Objektorientierter Stil

<?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();
?>

Prozeduraler Stil

<?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);
?>

Die obigen Bespiele erzeugen folgende Ausgabe:

Records: 150  Duplicates: 0  Warnings: 0

Siehe auch

  • mysqli_affected_rows
  • mysqli_warning_count
  • mysqli_num_rows