PHP | mysqli_kill() Function

PHP mysqli_kill() Function


Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP mysqli_kill() Function.

The built-in mysqli_kill() function accepts a process id as a parameter and prompts the MYSQL server to kill the specified thread.

Syntax

Following below is the syntax to use this function -

mysqli_kill($con  $procesdid);


Parameter Details

Sr.NoParameter & Description
1

con(Mandatory)

This is an object representing a connection to MySQL Server.

2

processid(Mandatory)

It is an integer value representing the process id.


Return Value

This built-in PHP function returns true on success and false on failure.

PHP Version

This PHP function was first introduced in PHP version 5 and it works in all the later versions.

Example1

The following example below illustrates the usage of the PHP mysqli_kill() function (in a procedural style) -

<?php
   //Creating the connection
   $con = mysqli_connect("localhost","root","password","test");

   $id = mysqli_thread_id($con);

   mysqli_kill($con, $id);

   $res = mysqli_query($con, "CREATE TABLE Sample (name VARCHAR(255))");

   if($res){
      print("Successful.....");
   }else{
      print("Failed......");
   }
?>

Output

When the above code is executed, it will produce the following result -

Failed.....

Example2

In an object oriented style the syntax of this PHP function is $con->kill(); The following is the example of this function in an object oriented style $minus;

<?php
   //Creating the connection
   $con = new mysqli("localhost","root","password","test");

   $id = $con->thread_id;

   $con->kill($id);

   $res = mysqli_query($con, "CREATE TABLE Sample (name VARCHAR(255))");

   if($res){
      print("Successful.....");
   }else{
      print("Failed......");
   }
?>

Output

When the above code is executed, it will produce the following result -

Failed.....

Example3

Try the following example below -

<?php
   $connection_mysql=mysqli_connect("localhost","root","password","mydb");
   
   if (mysqli_connect_errno($connection_mysql)){
      echo "Failed to connect to MySQL: " . mysqli_connect_error();
   }
   
   $t_id = mysqli_thread_id($connection_mysql);
   
   $res = mysqli_kill($connection_mysql,$t_id);
   
   if($res){
	   print("Thread terminated successfully......");
   }
   Thread terminated successfully......
?>

Output

When the above code is executed, it will produce the following result -

Thread terminated successfully


Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the mysqli_more_results() Function.

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