3.9.29 mysqli::kill, mysqli_kill

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• mysqli::kill

  mysqli_kill

  Asks the server to kill a MySQL thread

Description

Object oriented style

public bool mysqli::kill(int processid);

Procedural style

bool mysqli_kill(mysqli link,
                 int processid);

This function is used to ask the server to kill a MySQL thread specified by the processid 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

link

Procedural style only: A link identifier returned by mysqli_connect or mysqli_init

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 3.54 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

mysqli_thread_id