Copyright 1997-2021 the PHP Documentation Group.
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
ormysqli_init
Return Values
Returns true
on success or
false
on failure.
Examples
Example 3.55 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
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