PHP 8.1.28 Released!


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

openssl_csr_exportExports a CSR as a string


openssl_csr_export(OpenSSLCertificateSigningRequest|string $csr, string &$output, bool $no_text = true): bool

openssl_csr_export() takes the Certificate Signing Request represented by csr and stores it in PEM format in output, which is passed by reference.



Consulte Parâmetros CSR para obter uma lista de valores válidos.


on success, this string will contain the PEM encoded CSR


O parâmetro opcional notext afeta a verbosidade da saída; se for false, então informações adicionais legíveis para humanos serão incluídas na saída. O valor padrão de notext é true.

Valor Retornado

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

Registro de Alterações

Versão Descrição
8.0.0 csr accepts an OpenSSLCertificateSigningRequest instance now; previously, a resource of type OpenSSL X.509 CSR was accepted.


Exemplo #1 openssl_csr_export() example

= array(
"commonName" => "",
$private_key = openssl_pkey_new(array(
"private_key_bits" => 2048,
"private_key_type" => OPENSSL_KEYTYPE_RSA,
$configargs = array(
'digest_alg' => 'sha256WithRSAEncryption'
$csr = openssl_csr_new($subject, $private_key, $configargs);
openssl_csr_export($csr, $csr_string);

Veja Também

add a note

User Contributed Notes 1 note

carlos AT wfmh DOT org DOT pl
21 years ago
Here you come with the example of how to use this function.

if( $csr = openssl_csr_new( array(
"stateOrProvinceName" => "blah",
"organizationName" => "company ltd",
"Email"=>""), $privkey )
openssl_csr_export_to_file( $csr, "out.csr");

Keep in mind that keys are case sensitive (i.e. give "email" instead of "Email" and you get warning). Also remember it's important to keep the order of the arguments in array. Move the "Email" above commonName and check what you get (in case you don't know how: "openssl req -noout -text -in out.csr").

It also happened to me me I got segfault when order was rubbish (afair Email after countryName, or plenty Email's here and there), so be awared.
To Top