(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.

Elenco dei parametri


See CSR parameters for a list of valid values.


on success, this string will contain the PEM encoded CSR


Il parametro opzionale notext modifica la verbosità delli'output; se è false nelli'output viene incluso del testo informativo addizionale leggibile da un umano. Il valore di default di notext è true.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Log delle modifiche

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


Example #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);

Vedere anche:

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User Contributed Notes 1 note

carlos AT wfmh DOT org DOT pl
20 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.
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