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PHP | mysqli_thread_safe() Function

PHP mysqli_thread_safe() 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_thread_safe() Function.

The built-in mysqli_thread_safe() function in PHP determines whether the underlying client library supports thread safety or not.

Syntax

Following below is the syntax to use this function -

mysqli_thread_safe(void);


Parameter Details

This built-in PHP function does not accept any parameters.

Return Value

This built-in PHP function returns true if the underlying client library is thread safe and, false if not.

PHP Version

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

Example1

The following below is an example which demonstrates the usage of the built-in PHP mysqli_thread_safe() function (in a procedural style) -

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

   //Thread safe or not
   $res = mysqli_thread_safe();

   if($res){
      print("Is thread safe");
   }else{
      print("Is not thread safe");
   }
?>

Output

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

is thread safe

Example2

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

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

   //Thread safe or not
   $res = $con->thread_safe();

   if($res){
      print("Is thread safe");
   }else{
      print("Is not thread safe");
   }
?>

Output

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

is thread safe

Example3

Try the following example below -

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

   if (mysqli_connect_errno($con)){
      print("Failed to connect to MySQL: " . mysqli_connect_error());
   }
   
   $res = mysqli_thread_safe();

   //Id of the current thread
   $id = mysqli_thread_id($con);
   
   if($res){
      mysqli_kill($con, $id);
   }
?>


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_use_result() Function in PHP.

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