mysqli::kill

mysqli_kill

(PHP 5, PHP 7, PHP 8)

mysqli::kill -- mysqli_killAsks the server to kill a MySQL thread

Description

Object-oriented style

public mysqli::kill(int $process_id): bool

Procedural style

mysqli_kill(mysqli $mysql, int $process_id): bool

This function is used to ask the server to kill a MySQL thread specified by the process_id parameter. This value must be retrieved by calling the mysqli_thread_id() function.

To stop a running query you should use the SQL command KILL QUERY processid.

Parameters

mysql

Procedural style only: A mysqli object returned by mysqli_connect() or mysqli_init()

Return Values

Returns true on success or false on failure.

Errors/Exceptions

If mysqli error reporting is enabled (MYSQLI_REPORT_ERROR) and the requested operation fails, a warning is generated. If, in addition, the mode is set to MYSQLI_REPORT_STRICT, a mysqli_sql_exception is thrown instead.

Examples

Example #1 mysqli::kill() example

Object-oriented style

<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}/* determine our thread id */$thread_id = $mysqli->thread_id;/* Kill connection */$mysqli->kill($thread_id);/* This should produce an error */if (!$mysqli->query("CREATE TABLE myCity LIKE City")) {    printf("Error: %s\n", $mysqli->error);    exit;}/* close connection */$mysqli->close();?>

Procedural style

<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}/* determine our thread id */$thread_id = mysqli_thread_id($link);/* Kill connection */mysqli_kill($link, $thread_id);/* This should produce an error */if (!mysqli_query($link, "CREATE TABLE myCity LIKE City")) {    printf("Error: %s\n", mysqli_error($link));    exit;}/* close connection */mysqli_close($link);?>

The above examples will output:

Error: MySQL server has gone away

See Also