(PHP 4 >= 4.2.0, PHP 5, PHP 7)
openssl_csr_export_to_file — Exports a CSR to a file
openssl_csr_export_to_file() takes the Certificate
Signing Request represented by csr and saves it
in PEM format into the file named by outfilename.
csrSee CSR parameters for a list of valid values.
outfilenamePath to the output file.
notext
可选参数 notext 影响输出的冗余度。如果设为
FALSE，输出内容将包含附加的人类可读信息。notext 的缺省值为 TRUE。
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 openssl_csr_export_to_file() example
<?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');
?>