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openssl_pkey_export_to_file
Gets an exportable representation of a key into a file
(PHP 4 >= 4.2.0, PHP 5)
bool openssl_pkey_export_to_file ( mixed key, string outfilename [, string passphrase [, array configargs]] )
openssl_pkey_export_to_file() saves an ascii-armoured (PEM encoded) rendition of key into the file named by outfilename.
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.
Parameters
- key
- outfilename
Path to the output file.
- passphrase
The key can be optionally protected by a passphrase.
- configargs
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 information about configargs.