PHP | mysqli_init() Function

PHP mysqli_init() 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_init() Function.

The built-in mysqli_init() function initializes a mysqli object. The result of this function can be passed as one of the parameter to the PHP mysqli_real_connect() function.

Syntax

Following below is the syntax to use this function -

mysqli_init($con);


Parameter Details

Sr.NoParameter & Description
1

con(Mandatory)

This is an object representing a connection to MySQL Server.


Return Value

This built-in PHP function returns a MYSQLi object.

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_init() function (in a procedural style) -

<?php
   $db = mysqli_init();
   print_r($db);
?>

Output

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

mysqli Object
(
    [client_info] => mysqlnd 7.4.5
    [client_version] => 70405
    [connect_errno] => 0
    [connect_error] =>
    [errno] => 0
    [error] =>
)

Example2

The following below is another example of this built-in PHP function $minus;

<?php
   $db = mysqli_init();
   //Creating the connection
   $con = mysqli_real_connect($db, "localhost","root","password","test");
   if($con){
      print("Connection Established Successfully");
   }else{
      print("Connection Failed ");
   }
?>

Output

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

Connection Established Successfully

Example3

Try the following example below -

<?php
   $connection_mysql = mysqli_init();
   
   if (!$connection_mysql){
      die("mysqli_init failed");
   }
   
   if (!mysqli_real_connect($connection_mysql,"localhost","root","password","mydb")){
      die("Connect Error: " . mysqli_connect_error());
   }
   mysqli_close($connection_mysql);
   print("Connection established successfully......");
?>

Output

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

Connection Established 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 PHP mysqli_insert_id() Function.

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