Here is a small tips for you which you can use to upload such a large file using file field of the form and move_uploaded_file() function in PHP.
1) Create a .htaccess file in the root folder of web server.
2) Put the following code in side the .htaccess file and save it.
php_value upload_max_filesize 20M

How well is your website performing? Are you satisfied with the amount of customers who view your website? Do you get enough business through your website? By reading this article you will be in a position to do something about all three questions.
It’s all very well having a nicely designed and appealing website …

There are more than 105 million of them in the United States. Worldwide, there could be at least 250 million of them. Them, according to statistics from the Nielsen/Net Ratings service, is the number of active Web surfers. 250 million in the whole world? The figure is more than the populations of Canada, Australia, Great [...…