How to block website in Mobiles developed in php laravel

Question

I am using Javascript to block website in Mobile browsers which is done, but if selected Desktop Site in Mobile Browser, Website is displaying. How to Stop it from loading in Desktop Site irrespective of any browser. I am not familiar with php javascript is there anything i am missing in this code? Can anyone help me out yrr.

    @extends('layouts.auth')
    @section('page-title')
        {{__('Login')}}
    @endsection
    @php
        $logo=asset(Storage::url('uploads/logo/'));
    @endphp
    @section('content')
    
        <div class="login-contain">
            <div class="login-inner-contain">
                <a class="navbar-brand" href="#">
                    <img src="{{$logo.'/logo.png'}}" class="navbar-brand-img auth-logo" alt="logo">
                </a>
                <div class="login-form">
                    <div class="page-title"><h5>{{__('Login')}}</h5></div>
                    <form method="POST" action="{{ route('login') }}">
                        @csrf
                        <div class="form-group">
                            <label for="email" class="form-control-label">{{__('Email')}}</label>
                            <input class="form-control @error('email') is-invalid @enderror" id="email" type="email" name="email" value="{{ old('email') }}" required autocomplete="email" autofocus>
                            @error('email')
                            <span class="invalid-feedback" role="alert">
                                <strong>{{ $message }}</strong>
                            </span>
                            @enderror
    
                        </div>
    
                        <div class="form-group">
                            <label for="password" class="form-control-label">{{__('Password')}}</label>
                            <input class="form-control @error('password') is-invalid @enderror" id="password" type="password" name="password" required autocomplete="current-password">
                            @error('password')
                            <span class="invalid-feedback" role="alert">
                                <strong>{{ $message }}</strong>
                            </span>
                            @enderror
    
                        </div>
    
                        @if (Route::has('password.request'))
                            <a href="{{ route('password.request') }}" class="text-xs text-primary">{{ __('Forgot Your Password?') }}</a>
                        @endif
                        <button type="submit" class="btn-login">{{__('Login')}}</button>
                    </form>
                </div>
    
                <h5 class="copyright-text">
                    {{(Utility::getValByName('footer_text')) ? Utility::getValByName('footer_text') :  __('Copyright HRMGo') }} {{ date('Y') }}
                </h5>
                <div class="all-select">
                    <a href="#" class="monthly-btn">
                        <span class="monthly-text py-0">{{__('Change Language')}}</span>
                        <select class="select-box select2" onchange="this.options[this.selectedIndex].value && (window.location = this.options[this.selectedIndex].value);" id="language">
                            @foreach(Utility::languages() as $language)
                                <option @if($lang == $language) selected @endif value="{{ route('login',$language) }}">{{Str::upper($language)}}</option>
                            @endforeach
                        </select>
                    </a>
                </div>
            </div>
        </div>
    @endsection


  
<script>
    (function(a,b)
    {
        if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))window.location=b
        })
        (navigator.userAgent||navigator.vendor||window.opera,   
        'http://www.google.com/mobile');
</script>

Answer 1

I believe what you are looking for is the user-agent, HTTP header check out this documentation from Mozilla