Is it not supporting Mysqli ?

[ahsannajam]

Showing this error "Function mcrypt_get_iv_size() is deprecated" is it the issue of mysqli?

[vdanelia]

Hello,

Change MySql parametres at: \app\config\local\database.php

[hrshadhin]

what is your php version? this project build on Laravel 4. According to your error "Function mcrypt_get_iv_size() is deprecated", i think you run php 7 or later. Because php 7 deprecated that function.

[ahsannajam]

is there any easy way to shift this laravel project to newer version of laravel?

[hrshadhin]

I haven't try it. You can try to migrate laravel 4.2.x to laravel 5.x.
https://laravel.com/docs/5.1/upgrade#upgrade-5.0