Amazon EC2 Ubuntu Instance Maximum File Upload Size

I was given an Amazon EC2 Ubuntu Instance. We are task to create a web application that includes uploading a client video. I have created a file upload application in my localhost and it is working fine. When I migrated the code to the virtual host server, I cannot upload any video and even any file that exceeds 2Mb. I tried editing the php.ini setting upload_max_filesize to 50M and post_max_size to 1000M.

After restarting Apache so many times, the update is not reflected in my phpinfo() information but changes were saved in my php.ini file.

I was suspecting that the Amazon EC2 instance given to me has a file upload restrictions but Im not sure if Im right. If I was wrong, how can I override the configuration below? Any help would be very much appreciated.

UPDATE:

I even made sure that I was editing the correct configuration file. Below are the screen shots:

UPDATE:

I tried following what is said in the link with no luck. I have a lot of questions in mind about the link like:

1. What does tomcatchesides mean about S3 bucket? I uploaded the config file in /var/www/html/.ebextensions . Am I doing the right thing?

My zzz.ini contains the code below and I place it in /etc/php.d/zzz.ini:

[php]
post_max_size = 1000M
upload_max_filesize = 50M

My myconfigfile.config was located in /var/www/html/.ebextensions/myconfigfile.config and contains the code below:

files:
  "/etc/php.ini":
    mode: "000644"
    owner: root
    group: root
    source: http://mybucketname.s3.amazonaws.com/php.ini

  "/etc/php.d/zzz.ini":
    mode: "000644"
    owner: root
    group: root
    source: http://mybucketname.s3.amazonaws.com/zzz.ini

I also copied my php.ini from /etc/php/7.0/apache2/php.ini to /etc/php.ini and restarted apache. Still no changes. Am I doing the right thing?

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