Get raw post data

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Direct answer: you can not do that. PHP insists on parsing it itself, whenever it sees the multipart/form-data Content-Type. The raw data will not be available to you. Sadly. But you can hack around it.

I hit a similar problem, a partner was sending incorrectly formatted data as multipart/form-data, PHP could not parse it and was not giving it out so I could parse it myself.

The solution? I added this to my apache conf:

<Location "/backend/XXX.php">
    SetEnvIf Content-Type ^(multipart/form-data)(.*) NEW_CONTENT_TYPE=multipart/form-data-alternate$2 OLD_CONTENT_TYPE=$1$2
    RequestHeader set Content-Type %{NEW_CONTENT_TYPE}e env=NEW_CONTENT_TYPE
</Location>

This will change the Content-Type of incoming request to XXX.php from multipart/form-data to multipart/form-data-alternate, which is enough to block PHP from trying to parse it

After this you can finally read the whole raw data from php://input and parse it yourself.

It is ugly, but I have not found a better or in fact any other solution – short of asking the partner to fix their side.

NB! When you do what I described here, $_FILES will be empty.

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