OpenSSL Functions
PHP Manual

openssl_csr_export

Exports a CSR as a string

Description

bool openssl_csr_export(OpenSSLCertificateSigningRequeststring $csr, string &$output, bool $no_text = true)

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

Parameters

csr

See CSR parameters for a list of valid values.

output

on success, this string will contain the PEM encoded CSR

no_text

The optional parameter notext affects the verbosity of the output; if it is false, then additional human-readable information is included in the output. The default value of notext is true.

Return Values

Returns true on success or false on failure.

Changelog

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

Examples

Example #1 openssl_csr_export() example

<?php
$subject = array(
    "commonName" => "example.com",
);
$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);
echo $csr_string;
?>

See Also

  • openssl_csr_export_to_file
  • openssl_csr_new
  • openssl_csr_sign