Apache has a global variable called $PATH_INFO that is created on every HTTP request, What this variable contains is the script that's being called, and everything to the right of that information in the URL. $PATH_INFO will contain article.php/12.

First you have to split this into variables you can use. And you can do that using PHP’s explode function:

$var_array = explode("/",$PATH_INFO);

Once you do that, you’ll have the following information:

$var_array[0] = "article.php"
$var_array[1] = 12

rename the variable you get $var_array[1] as $article

if your artical has multiple page you can also get the page value here

article.php/12/1 explode this

$var_array = explode("/",$PATH_INFO);
$var_array[0] = "article.php"
$var_array[1] = 12
$var_array[2] = 1

$var_array[1] as $article and $var_array[2] as $page_num and get the value from database.

If you would like to remove the .php extention from article.php use below mehtod for that

Setting up Apache to process a php file without an extension as a PHP file.

In your .htaccess file (if you don't have one, create it), add below code

<Files site>
ForceType application/x-httpd-php
</Files>

 

There is an another option to make SEFu

Use Mod-rewrite

URL will look like

article.php/12

You can rename article.php to article and get it work as php file.

You can use following .htaccess file.

RewriteEngine On
RewriteRule ^/article/([0-9]*) /article.php?ID=$1

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