Last updated: Fri, 27 Jun 2008

openssl_pkey_export

(PHP 4 >= 4.2.0, PHP 5)

openssl_pkey_export — Gets an exportable representation of a key into a string

Description

bool openssl_pkey_export ( mixed $key , string &$out [, string $passphrase [, array $configargs ]] )

openssl_pkey_export() exports key as a PEM encoded string and stores it into out (which is passed by reference).

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
out
passphrase: The key is optionally protected by 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 .

Return Values

Returns TRUE on success or FALSE on failure.

add a note User Contributed Notes
openssl_pkey_export

07-May-2007 01:31


you can get public key using openssl_pkey_get_details(resource $key ) function:



<?php



$pub_key = openssl_pkey_get_public(file_get_contents('./cert.crt'));

$keyData = openssl_pkey_get_details($pub_key);

fule_put_contents('./key.pub', $keyData['key']);



?>

robbat2 at gentoo dot org
09-Aug-2004 12:47


Warning, this function is NOT capable of exporting PEM-encoded public keys. It can only export private keys.

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openssl_pkey_free

openssl_pkey_export_to_file

Last updated: Fri, 27 Jun 2008