Description:
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It would be a really good idea to implement an openssl_csr_parse function that could be used by someone implementing a PHP-based Certificate Authority to verify the information being presented by the requestor.  For example, if you thought you were issuing an e-mail certificate for "blah@blah.com", it would be really handy to be able to verify that th CSR is asking for a certificate with that e-mail address in it.  Currently, the only way I can figure to check to make sure that the CSR had the correct information in it is to actually do the signing process and then use openssl_x509_parse to make sure that the attributes are correct, and discard the certificate if they are not.

Reproduce code:
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Expected result:
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Actual result:
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None