(PHP 4 >= 4.2.0, PHP 5)openssl_pkey_export_to_file -- Gets an exportable representation of a key into a file
openssl_pkey_export_to_file() saves an ascii-armoured
(PEM encoded) rendition of
key into the file named
outfilename. The key can be optionally
protected by a
configargs can be used to fine-tune the export
process by specifying and/or overriding options for the openssl
configuration file. See openssl_csr_new() for more
Returns TRUE on success or FALSE on failure.
Note: You need to have a valid openssl.cnf installed for this function to operate correctly. See the notes under the installation section for more information.