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I’m trying to allow users to upload large files (64MB) and am planning to change upload_max_filesize to 64MB.
However, should I also change memory_limit to 64MB or larger?
Is memory_limit connected to upload_max_filesize?
No, it’s not necessary.
PHP has different POST readers and handlers depending on the content type of the request. In case of “multipart/form-data” (what is used for sending files),
rfc1867_post_handleracts as a mixed reader/handler. It populates both$_POSTand$_FILES. What goes into$_POSTcounts towards the memory limit, what goes into$_FILESalso counts.However,
$_FILEShas just meta-data about the files, not the files themselves. Those are just written into the disk and hence don’t count towards the memory limit.