Copyright 1997-2022 the PHP Documentation Group.
mysqli::close
mysqli_close
Closes a previously opened database connection
Description
Object-oriented style
public bool mysqli::close();
Procedural style
bool mysqli_close(mysqli mysql);
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.
Parameters
-
mysql
Procedural style only: A
mysqli
object returned bymysqli_connect
ormysqli_init
Return Values
Returns true
on success or
false
on failure.
Examples
Example 7.41 mysqli::close
example
Object-oriented style
<?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 */
}
Procedural style
<?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 */
}
Notes
mysqli_close
will not close persistent connections. For additional details,
see the manual page on
persistent
connections.
See Also
mysqli::__construct
|
mysqli_init
|
mysqli_real_connect
|
mysqli_free_result
|