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I know that we can increase and change the maximum upload file size but I need to know are there any limits for this increasing or it's just open and depended on the server.

Yousef Altaf
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  • It's defined in the php.ini file. Check this thread http://stackoverflow.com/questions/2184513/php-change-the-maximum-upload-file-size – Jason K Jun 10 '16 at 15:52
  • fine I did see this before I asked but my question is what is the limits for example can I upload a file size 1GB and if yes when we can say this is the limit you can't increase more? – Yousef Altaf Jun 10 '16 at 15:56

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upload_max_filesize cannot exceed post_max_size which, in turn, must not exceed the 32 bit signed integer limit on a 32 bit system - ie 2GiB. This is larger than your 1GB example so I would say it should be fine.

You may also need to raise memory_limit although advice on this online is inconsistent.

I haven't tested but I think it's therefore a fair assumption that on a 64 bit system the theoretical maximum size is 2^63-1 or 8EiB (ie Quite Large).

Matt Raines
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