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PHP | mysqli_get_proto_info() Function

PHP mysqli_get_proto_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_proto_info() Function.

The PHP mysqli_get_proto_info() function is used to get the information about (version) of the MYSQL protocol used.

Syntax

Following below is the syntax to use this function -

mysqli_get_proto_info($con);


Parameter Details

Sr.NoParameter & Description
1

con(Optional)

This is an object representing a connection to MySQL Server.


Return Value

This built-in PHP function returns an integer value specifying the version of the MYSQL protocol used.

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_get_proto_info() function (in a procedural style) -

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

   //Protocol Version
   $info = mysqli_get_proto_info($con);
   print("Protocol Version: ".$info);

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

Output

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

Protocol Version: 10

Example2

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

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

   //Protocol Version
   $info = $con->protocol_version;
   print("Protocol Version: ".$info);

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

Output

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

Protocol Version: 10

Example3

Following is another example of the PHP mysqli_get_protocol_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");
      $info = mysqli_get_proto_info($con);
      print("Protocol Version: ".$info);
   }
?>

Output

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

Connection Established Successfully
Protocol Version: 10

Example4

Try the following example below -

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

Output

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

10


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_server_info() Function in PHP.

Do feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

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Thanks for reading and bye for now.

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