Q. When you try to update the blog post in WordPress or any php application, you might notice that the application such as WordPress has a prohibitive maximum PHP file upload size. How to increase this limit in PHP ? In the below screenshot, i configured my PHP upload size to 50MB.
A. If you own the virtual private server of dedicated web server, it is very easy to increase this parameter or option. The options can be set in php.ini configuration file, this configuration apply to all your applications. Many shared hosting server allows a maximum PHP file upload size is very low. This method may not work for most shared hosting because you do not give root access. If you plan to receive larger files, you should consider to purchase virtual private server (VPS) or dedicated server hardware.
What is default PHP File Upload Size (upload_max_filesize)?
The default values for PHP will restrict you to a maximum 2 MB upload file size.
Note : Below require you to access the server using root access from the linux server console. The steps has been tested on PHP 5.3 and PHP 5.4.
a) Login to your server via ssh connection.
b) Open php.ini file using vi editor :
# vi /etc/php.ini
There are two PHP configuration options that control the maximum PHP file upload size which are “upload_max_filesize” and “post_max_size”.
By default post_max_size = 8M and upload_max_filesize = 2M. You can update this value to the following :
c) Update this value from 8M to 60M :
post_max_size = 60M
d) Update this value from 2M to 50M :
upload_max_filesize = 50M
Note : Technically, post_max_size should always be greater than upload_max_file size . But for such a large number 150M you can safely make them the same size.
e) After you have made a changes, Then restart your web server to take effect of new PHP file upload size (e.g Apache or Nginx).
You can read more on these posts which explains PHP file upload article.