openssl_pkey_export
PHP function
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(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
Gets an exportable representation of a key into a string
Description
openssl_pkey_export(OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $key, string $output, string|null $passphrase = null, array|null $options = null): bool
openssl_pkey_export() exports key as a PEM encoded string and stores it into output (which is passed by reference).
Cnf
Parameters
keyoutputpassphraseThe key is optionally protected by
passphrase.optionsoptionscan be used to fine-tune the export process by specifying and/or overriding options for the openssl configuration file. Seeopenssl_csr_new()for more information aboutoptions.
Return Values
Success
Changelog
| Version | Description |
|---|---|
| 8.0.0 | key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a Resource of type OpenSSL key or OpenSSL X.509 was accepted. |