MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli::close
mysqli_close
Closes a previously opened database connection
Object oriented style
public bool mysqli::close();
Procedural style
bool mysqli_close(mysqli link);
Closes a previously opened database connection.
Open non-persistent MySQL connections and result sets are automatically destroyed when a PHP script finishes its execution. So, while explicitly closing open connections and freeing result sets is optional, doing so is recommended. This will immediately return resources to PHP and MySQL, which can improve performance. For related information, see freeing resources
link
Procedural style only: A link identifier returned by
mysqli_connect
or
mysqli_init
Returns true
on success or
false
on failure.
See
mysqli_connect
.
mysqli_close
will not close persistent connections. For additional details,
see the manual page on
persistent
connections.
mysqli::__construct
|
mysqli_init
|
mysqli_real_connect
|
mysqli_free_result
|