PHP increase file upload size

 You can increase file upload size by setting upload_max_filesize to a higher value. Find the upload_max_filesize directive in php.ini and change the default value:

; Maximum allowed size for uploaded files.
; http://php.net/upload-max-filesize
upload_max_filesize = 8M

Restart apache so the new configuration can take effect:

/etc/init.d/apache2 restart