How to create a fpdf wordpress plugin

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I’m familiar with creating wordpress plugins. I tried hard to make fpdf plugin to create pdf file from php contents, but IT didn’t work

I now that :
require_once("fpdf.php"); should comes at the top of my file, and I think that is my main problem

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below is how to create a simple pdf file from php script using fpdf: 

require('fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'Hello World!');
$pdf->Output();

What I should do to make it work?

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2 comments

  1. The question is, how do you convert your html to pdf output? To get your PDF to look like your webpage, that is, with all the html+css, I don’t believe this library will do it.

    If you just want to get the post_content from a post, and put it into a pdf, you could do this:

    To create a plugin:

    You’ll need to add a folder to /wp-content/plugins/ and create your plugin file in that folder:

    /wp-content/plugins/fpdf/fpdf.php

    /*
Plugin Name: fpdf
Description: Post to PDF
*/

// Here's where you'll write your code.
$post = get_post( $post_id );

require('fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,$post->post_content);
$pdf->Output();

    This would output a pdf on every page load, after you activate the plugin, which is not likely what you’re looking for…

  2. If you are sure the problem in require('fpdf.php'); then use full file path as follows

    define( 'MYPLUGINNAME_PATH', plugin_dir_path( __FILE__ ) );
require MYPLUGINNAME_PATH . 'fpdf.php';