PHP mysqli_thread_id() Function

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Definition and Usage

The mysqli_thread_id() function accepts a connection object and returns the thread id of the given connection.

Syntax

mysqli_thread_id($con);

Parameters

Return Values

This function returns an integer value representing the Thread id of the current connection.

PHP Version

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

Example

Following example demonstrates the usage of the mysqli_thread_id() function (in procedural style) −

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

   //Id of the current thread
   $id = mysqli_thread_id($con);
   print("Current thread id: ".$id);
?>

This will produce following result −

Current thread id: 55

Example

In object oriented style the syntax of this function is $con-> thread_id; Following is the example of this function in object oriented style $minus;

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

   //Current thread id
   $id = $con->thread_id;

   print("Current thread id: ".$id);
?>

This will produce following result −

Current thread id: 55

Example

Following is another example of this function, it retries the id of current thread and kills it $minus;

<?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......");
   }
?>

This will produce following result −

Failed.....

Example

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

<?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);
   
   $res = mysqli_thread_id($connection_mysql,$t_id);
   
   if($res){
	   print("Thread terminated successfully......");
   }
?>

This will produce following result −

Thread terminated successfully......