> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/connectors/mariadb-connector-c/api-functions/mysql_close.md).

# mysql\_close

## Syntax

```c
void mysql_close(MYSQL * mysql);
```

## Parameter

* `mysql` - a `mysql` handle, which was previously allocated by [mysql\_init()](/docs/connectors/mariadb-connector-c/api-functions/mysql_init.md) or [mysql\_real\_connect()](/docs/connectors/mariadb-connector-c/api-functions/mysql_real_connect.md).

## Description

Closes a previously opened connection and deallocates all memory.

{% hint style="info" %}
To reuse a connection handle after `mysql_close()` the handle must be initialized again by [mysql\_init()](https://github.com/mariadb-corporation/mariadb-connector-c/wiki/mysql_init).
{% endhint %}

## See Also

* [mysql\_init()](/docs/connectors/mariadb-connector-c/api-functions/mysql_init.md)
* [mysql\_real\_connect()](/docs/connectors/mariadb-connector-c/api-functions/mysql_real_connect.md)

{% @marketo/form formId="4316" %}