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openssl_pkey_export_to_file

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

openssl_pkey_export_to_fileGets an exportable representation of a key into a file

Descrição

openssl_pkey_export_to_file(
    #[\SensitiveParameter] OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $key,
    string $output_filename,
    #[\SensitiveParameter] ?string $passphrase = null,
    ?array $options = null
): bool

openssl_pkey_export_to_file() saves an ascii-armoured (PEM encoded) rendition of key into the file named by output_filename.

Nota: É preciso ter um arquivo openssl.cnf válido instalado para que esta função funcione corretamente. Consulte as notas na seção de instalação para obter mais informações.

Parâmetros

key

output_filename

Path to the output file.

passphrase

The key can be optionally protected by a passphrase.

options

options 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 options.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.

Registro de Alterações

Versão Descrição
8.0.0 key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a resource of type OpenSSL key or OpenSSL X.509 was accepted.
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User Contributed Notes 2 notes

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-7
w3ricardo
12 years ago
You can't use this function to export a public key

Warning: openssl_pkey_export_to_file(): supplied key param is a public key
up
-7
StampyCode
7 years ago
On Linux (PHP5.6), this function will overwrite an existing keyfile, unless the keyfile is marked as read-only, in which case you will get an error:

error:0200100D:system library:fopen:Permission denied
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