PHP: Hypertext Preprocessor (original) (raw)

mysqli::kill

mysqli_kill

(PHP 5, PHP 7, PHP 8)

mysqli::kill -- mysqli_kill — Asks the server to kill a MySQL thread

Warning

This function has been_DEPRECATED_ as of PHP 8.4.0. Relying on this function is highly discouraged.

Description

Object-oriented style

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

Return Values

Returns [true](reserved.constants.php#constant.true) on success or [false](reserved.constants.php#constant.false) on failure.

Changelog

Version	Description
8.4.0	Both mysqli::kill() andmysqli_kill() are now deprecated. Use theKILL SQL command instead.

Examples

Example #1 mysqli::kill() example

Object-oriented style

<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); }/* determine our thread id */ <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>t</mi><mi>h</mi><mi>r</mi><mi>e</mi><mi>a</mi><msub><mi>d</mi><mi>i</mi></msub><mi>d</mi><mo>=</mo></mrow><annotation encoding="application/x-tex">thread_id = </annotation></semantics></math>threadid=mysqli->thread_id;/* Kill connection */ <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>m</mi><mi>y</mi><mi>s</mi><mi>q</mi><mi>l</mi><mi>i</mi><mo>−</mo><mo>></mo><mi>k</mi><mi>i</mi><mi>l</mi><mi>l</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">mysqli->kill(</annotation></semantics></math>mysqli−>kill(thread_id);/* This should produce an error */ if (!$mysqli->query("CREATE TABLE myCity LIKE City")) { printf("Error: %s\n", $mysqli->error); exit; }/* close connection */ $mysqli->close(); ?>

Procedural style

<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); }/* determine our thread id */ <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>t</mi><mi>h</mi><mi>r</mi><mi>e</mi><mi>a</mi><msub><mi>d</mi><mi>i</mi></msub><mi>d</mi><mo>=</mo><mi>m</mi><mi>y</mi><mi>s</mi><mi>q</mi><mi>l</mi><msub><mi>i</mi><mi>t</mi></msub><mi>h</mi><mi>r</mi><mi>e</mi><mi>a</mi><msub><mi>d</mi><mi>i</mi></msub><mi>d</mi><mo stretchy="false">(</mo></mrow><annotation encoding="application/x-tex">thread_id = mysqli_thread_id(</annotation></semantics></math>threadid=mysqlithreadid(link);/* Kill connection */ mysqli_kill($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

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