PHP - HTML to PDF

How to do HTML to PDF in PHP ?

In this post , I will cover as how you convert an HTML page into PDF  file on a fly.
You basically need an fpdf  library to do the task.You may download it from http://www.fpdf.org/en/download.phpWe will be using HTML2FPDF class of fpdf library.
Now let us see, how to convert a sample HTML page into a PDF file using HTML2FPDF Library.
Below is the code for the conversion.

<?php

require('html2fpdf.php');

$pdf=new HTML2FPDF();

$pdf->AddPage();

$fp = fopen("sample.html","r");

$strContent = fread($fp, filesize("sample.html"));

fclose($fp);

$pdf->WriteHTML($strContent);

$pdf->Output("sample.pdf");

echo "PDF file is generated successfully!"; 

Just that simple.You just need to include html2fpdf.php.Here I have passed sample.html page,the pdf generated will have same content of sample.html page,however in the pdf format.

Read More

PHP - How to Login with Facebook

Login with Facebook

In this tutorial , I will take you through as how can you make an application wherein you login with Facebook.
We will be using Facebook Graph API for this purpose.
You need to follow the below steps to get started.

1. Visit https://developers.facebook.com/apps and click Create New App.
2. You will then get an App ID & Secret to be used for your current application.
3. Download the zip file from  here.Then extract it and copy to your root directory.
4. Edit config.php and change App ID & Secret to these values.
5. Also change callback url to have your site path.
6. Access index.php via your browser.

That’s all when you click on login with facebook button , you will be redirected to Facebook’s login page.After entering your proper credentials , you will be redirected to your site.

You will also have to add a logout button on your web page.However I have written the code in the file to logout.

Read More