PHP | mysqli_get_host_info() 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_get_host_info() Function.

The PHP mysqli_get_host_info() function is used to get the information about the host, i.e. type of the connection used and, name of the host server.

Syntax

Following below is the syntax to use this function -

mysqli_get_host_info($con);

READ: PHP | mysqli_get_client_info() Function

Parameter Details

Sr.No	Parameter & Description
1	con(Optional) This is an object representing a connection to MySQL Server.

Return Value

This function returns a string specifying the host and connection type.

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 PHP mysqli_get_host_info() function (in a procedural style) -

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

   //Host Info
   $info = mysqli_get_host_info($con);
   print("Host Info: ".$info);

   //Closing the connection
   mysqli_close($con);
?>

Output

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

Client Library Version: localhost via TCP/IP

Example2

In object oriented style the syntax of this function is $con->host_info. The following is the example of this function in an object oriented style -

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

   //Host Info
   $info = $con->host_info;
   print("Host Info: ".$info);

   //Closing the connection
   $con -> close();
?>

Output

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

Client Library Version: localhost via TCP/IP

Example3

Following is another example of the PHP mysqli_get_host_info() function -

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

   $code = mysqli_connect_errno();
   if($code){
      print("Connection Failed: ".$code);
   }else{
      print("Connection Established Successfully"."\n");
      $info = mysqli_get_host_info($con);
      print("Host Info: ".$info);
   }
?>

Output

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

MySQL Server Version Number: localhost via TCP/IP

Example4

Try the following example below -

<?php
   $connection_mysql = mysqli_connect("localhost","root","password","mydb");
   
   if (mysqli_connect_errno($connection_mysql)){
      echo "Failed to connect to MySQL: " . mysqli_connect_error();
   }
   echo mysqli_get_host_info($connection_mysql);   
   mysqli_close($connection_mysql);
?>

Output

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

localhost via TCP/IP

READ: PHP | mysqli_get_connection_stats() Function

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 built-in mysqli_get_proto_info() Function in PHP.

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