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openssl_csr_export_to_file

PHP function Edit on GitHub ✎

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

Exports a CSR to a file

Description

openssl_csr_export_to_file(OpenSSLCertificateSigningRequest|string $csr, string $output_filename, bool $no_text = true): bool

openssl_csr_export_to_file() takes the Certificate Signing Request represented by csr and saves it in PEM format into the file named by output_filename.

Parameters

output_filename: Path to the output file.
no_text: Param-notext

Return Values

Success

Changelog

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

Examples

openssl_csr_export_to_file() example

php

<?php
$subject = array(
    "commonName" => "example.com",
);
$private_key = openssl_pkey_new(array(
    "private_key_bits" => 2048,
    "private_key_type" => OPENSSL_KEYTYPE_RSA,
));
$csr = openssl_csr_new($subject, $private_key, array('digest_alg' => 'sha384') );
openssl_pkey_export_to_file($private_key, 'example-priv.key');
// Along with the subject, the CSR contains the public key corresponding to the private key
openssl_csr_export_to_file($csr, 'example-csr.pem');
?>