Description:
------------
---
From manual page: http://www.php.net/function.openssl-csr-new#refsect1-function.openssl-csr-new-parameters
---

It is not documented that:

$csr_resource = openssl_csr_new(array(), file_get_contents('some.csr'));

will return a valid CSR resource.


Test script:
---------------
//Load your private key
 $private_key_resource = openssl_pkey_get_private(file_get_contents('private.pem'));

//Extract the public key
$details = openssl_pkey_get_details($private_key_resource);
$public_key_text = $details['key'];


//Load the text CSR file
$csr_text = file_get_contents('request.csr');
// UNDOCUMENTED FEATURE
$csr_resource = openssl_csr_new(array(), $csr_text);
$csr_public_key_resource = openssl_csr_get_public_key($csr_resource);
$csr_public_key_details = openssl_pkey_get_details($csr_public_key_resource);
$csr_public_key_text = $csr_public_key_details['key'];

//Prove that the CSR is valid, assuming you built it right in the first place
if ($public_key_text != $csr_public_key_text)
{
    echo "The public key doesn't match, so that's not a good CSR.\n";
}
else
{
    echo "Yay! There IS a way to create a CSR resource from text. It's just not documented.\n";
}


Expected result:
----------------
Going strictly by the docs, some kind of error message about wrong type for the CSR, since text is in no way similar to a CSR private key resource.

Actual result:
--------------
It works, thank goodness.

Because if it didn't, there is no way to convert a CSR text file to a CSR resource.