mpdf class not fount error CI 4.1.5

mpdf class not fount error CI 4.1.5 - Printable Version

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mpdf class not fount error CI 4.1.5 - ferb - 11-18-2021

I am using CI 4.1.5, installed from composer. On fedora 35 x86_54.

Code:
$ composer create-project codeigniter4/appstarter ci4-mpdf

I installed mpdf from composer as well, the code I use in the invocation is:

Code:
$ composer require mpdf/mpdf

PHP Code:
<?php
namespace App\Controllers;

class Home extends BaseController{
     public function index(){
         $mpdf = new \Mpdf\Mpdf();
         $html = view('html_to_pdf',[]);
         $mpdf->WriteHTML($html);
         $this->response->setHeader('Content-Type', 'application/pdf');
         $mpdf->Output('arjun.pdf','I');
     }
} 

And I also modified it as follows:

PHP Code:
<?php
namespace App\Controllers;
use Mpdf\Mpdf;

class Home extends BaseController{
     public function index(){
         $mpdf = new Mpdf();
         $html = view('html_to_pdf',[]);
         $mpdf->WriteHTML($html);
         $this->response->setHeader('Content-Type', 'application/pdf');
         $mpdf->Output('arjun.pdf','I');
     }
} 

and the error show this:

Code:
Error

Class "Mpdf\Mpdf" not found

APPPATH/Controllers/Home.php at line 43

38    {

39        return view('welcome_message');

40    }

41 

42    public function pdf(){

43        $mpdf = new Mpdf();

Checking the composer autoload file, I found that it does not include the mpdf installation path, I tried to regenerate it with composer dump-autoload and it still does not work.

I tried to add it manually, and it doesn't work either. Is it necessary to modify some other composer path or add the mpdf installation manually?

Thanks!

RE: mpdf class not fount error CI 4.1.5 - captain-sensible - 11-18-2021

if what your trying to do is so surfers can download a pdf version of your web page , then i can tell you i have had success with : https://packagist.org/packages/tecnickcom/tcpdf

Now i installed that via entry in composer.json file but it didn't work

Now in that particular case, the tcpdf.php main file had no namespace , so i had to load it in app/Config/Autoload.php using :

Code:
public $classmap = [  'TCPDF'=>ROOTPATH.'tecnickcom/tcpdf/tcpdf.php'

   ];

if mpdf files have a namespace then you can try running :

Code:
composer dump-autoload

have a look inside class files to see if they have a namespace or not.

RE: mpdf class not fount error CI 4.1.5 - ferb - 11-18-2021

Thank you for your response.

I need mpdf or tcpdf, to generate sales reports, tickets, inventory, or reports cash dynamically.

RE: mpdf class not fount error CI 4.1.5 - captain-sensible - 11-19-2021

yeah i've got it working for blog postings - basically using output from database and links in view , whaterver blog is posted its possible to download a pdf of it.

i can't show you live since waiting for daughter to come up with one. I'll have a look maybe over week end at mpdf .

if its not considered shameless promotion of my CMS by mods you can download :
https://sourceforge.net/projects/codeigniter4cms/ unzip go into controllers

Code:
and look at  ProducePDF.php  in controllers.

look at app/Config/Autoload.php to see how i make sure class  can be found by system .

look at blogArticle.php  in vews to see how i dynamically list link to produce pdf

look at routes  , particularly :   $routes->get('linkPdf/(:segment)','ProducePDF::getPdf/$1');

if you want the thing to run, go into route of unzip and run from cli (depending on how you have composer set up , better still if your on linux ) : composer install

thats because to cut down on download i didn't upload vendor.

that should give you a clue of basics how i did it

RE: mpdf class not fount error CI 4.1.5 - ferb - 11-19-2021

(11-19-2021, 11:03 AM)captain-sensible Wrote: yeah i've got it working for blog postings - basically using output from database and links in view , whaterver blog is posted its possible to download a pdf of it.

i can't show you live since waiting for daughter to come up with one. I'll have a look maybe over week end at mpdf .

if its not considered shameless promotion of my CMS by mods you can download :
https://sourceforge.net/projects/codeigniter4cms/ unzip go into controllers

Code:
and look at ProducePDF.php in controllers. look at app/Config/Autoload.php to see how i make sure class can be found by system . look at blogArticle.php in vews to see how i dynamically list link to produce pdf look at routes , particularly : $routes->get('linkPdf/(:segment)','ProducePDF::getPdf/$1');

if you want the thing to run, go into route of unzip and run from cli (depending on how you have composer set up , better still if your on linux ) : composer install

thats because to cut down on download i didn't upload vendor.

that should give you a clue of basics how i did it

thanks, i try it.

RE: mpdf class not fount error CI 4.1.5 - nfaiz - 11-21-2021

Are you sure the installation is in ci4-mpdf directory?

RE: mpdf class not fount error CI 4.1.5 - ferb - 11-21-2021

(11-21-2021, 04:18 AM)nfaiz Wrote: Are you sure the installation is in ci4-mpdf directory?

Hi, yeap.

The files package are inside vendor folder /mpdf/mpdf

RE: mpdf class not fount error CI 4.1.5 - ferb - 11-22-2021

II found the error:

On my local lo server, I found that a php library was missing for gd. And this was causing mpdf version 6.1.3 to be installed, the current version is 8.0.10, however composer was not installing it.

So I installed the missing library, updated composer and everything worked perfectly, now I can use the mpdf library.

RE: mpdf class not fount error CI 4.1.5 - captain-sensible - 11-28-2021

Recently i had trouble with html 2 pdf on the fly on my live server hosting. While getting help from web support, I had a play with Dompdf. I also had a quick look at mpdf and then back to the original library tcpdf.

if your requirement is just getting text from html then , mpdf ( https://packagist.org/packages/mpdf/mpdf ) is really easy.

Composer should not be run as root, so that can pose some problems running composer from inside your web app on live server , i've found particularly if web app is a sub domain or directory within your main hosting. Maybe its my hosting ?

A hack around running composer live, i've found, is simply to get things working on local dev , running composer on local dev, zipping up the whole vendor directory and then over writing the vendor directory on the live server. Its worked for me !

So on local dev say to get mpdf , from a linux command line ( you are using linux i hope ) cd to web root and run :

Code:
composer   require mpdf/mpdf

Doing that should put mpdf library in your CI vendor directory, and you should also see it updates your composer.json file eg :

Code:
"require": {

        "php": ">=7.2",

        "codeigniter4/framework": "^4",

        "twbs/bootstrap": "^4.5",

        "tecnickcom/tcpdf": "^6.4",

        "dompdf/dompdf": "^1.1"

    },

Now the autoloader should take care of your CI app finding the library.

The way I use it is on the html page for a blog, is to present a link which includes the slug of the blog title.

So basically when someone clicks on a get page as pdf link , it goes to a route ,which then invokes a controller class and its method to do the work.

IN my case the link( for a blog entry ) is in the form :

Domain.com/linkPdf/slug

This will invoke route :

Code:
$routes->get('linkPdf/(:segment)','ProducePDF::getPdf/$1');

The controller class is ProducePDF and the class method is : getPdf()

Basically it will retrieve from the database the blog title, article and image name,

Anyway, let me give a simple example of using mpdf in a controller.

At the beginning of the controller :

Code:
use Dompdf\Dompdf;

the above means use namespace called Dompdf and use the class also called Dompdf

Now the basics of using mpdf in a controller are :

Code:
$mystring ="<h1>   some html text </h1>";

$someTitle = " hello world";

$dompdf->loadHtml($mystring);

// set paper size and orientation

$dompdf->setPaper('A4', 'portrait');

// render html as pdf

$dompdf->render();

$dompdf ->stream($someTitle".pdf");

// what you will see at this stage is a save fiel coming up in your browser

How do you evoke controller in the first place. Well its easy if the html is stored in a database with say field for say title, main article , slug, image, then all you have to do is get the strings for the text , containing html

then you can use a link on a view, which uses a route so that it goes t o a controller to do all the work

Since my daughter has now got around to doing her first blog post , you can see html 2 pdf, being produced on the fly by clicking "cms in action " below my post then on menu blogs -> click on the single listing -> bottom of page -> pdf link.

You should get a pdf file that has the blog image inserted.

Now I played with mdpf to insert image and it was a bit of a pain conversion to base64 being needed, so i just used tcpdf instead.

getting html2pdf is more complicated with tcpdf

RE: mpdf class not fount error CI 4.1.5 - InsiteFX - 11-28-2021

I get every thing working on my local system using vhosts, then I upload ftping every thing to the root.

Only change I have to make is change public to public_html because my live server uses that.
I change it on my local server ftp to root and it just runs right off.