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mysqli::close

mysqli_close

(PHP 5, PHP 7, PHP 8)

mysqli::close -- mysqli_close — Closes a previously opened database connection

Descrizione

Stile orientato agli oggetti

public mysqli::close(): true

Stile procedurale

mysqli_close(mysqli $mysql): true

Closes a previously opened database connection.

Open non-persistent MySQL connections and result sets are automatically closed when their objects are destroyed. Explicitly closing open connections and freeing result sets is optional. However, it's a good idea to close the connection as soon as the script finishes performing all of its database operations, if it still has a lot of processing to do after getting the results.

Elenco dei parametri

link

Solo nello stile procedurale: un identificatore restituito da mysqli_connect() o mysqli_init()

Valori restituiti

Always returns true.

Log delle modifiche

Versione Descrizione
8.0.0 This function now always returns true. Previously it returned false on failure.

Esempi

Example #1 mysqli::close() example

Stile orientato agli oggetti

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

$result = $mysqli->query("SELECT Name, CountryCode FROM City ORDER BY ID LIMIT 3");

/* Close the connection as soon as it's no longer needed */
$mysqli->close();

foreach ($result as $row) {
/* Processing of the data retrieved from the database */
}

Stile procedurale

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = mysqli_connect("localhost", "my_user", "my_password", "world");

$result = mysqli_query($mysqli, "SELECT Name, CountryCode FROM City ORDER BY ID LIMIT 3");

/* Close the connection as soon as it's no longer needed */
mysqli_close($mysqli);

foreach ($result as $row) {
/* Processing of the data retrieved from the database */
}

Note

Nota:

mysqli_close() will not close persistent connections. For additional details, see the manual page on persistent connections.

Vedere anche: