openssl_csr_export

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

openssl_csr_export — 将 CSR 作为字符串导出

说明

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

openssl_csr_export() 获取证书签名请求（csr）并通过引用保存其 PEM 格式的字符串（output）。

参数

csr

See CSR parameters for a list of valid values.

output

在成功时，该字符串将包含 PEM 编码的 CSR。

no_text

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。

返回值

成功时返回 true， 或者在失败时返回 false。

更新日志

版本 说明
8.0.0 csr 现在接受 OpenSSLCertificateSigningRequest 实例；之前接受类型 OpenSSL X.509 CSR 的 resource。

示例

示例 #1 openssl_csr_export() 示例

<?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;
?>

参见

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

if( $csr = openssl_csr_new( array( 
     "countryName"=>"PL",
     "stateOrProvinceName" => "blah",
     "organizationName" => "company ltd",
     "commonName"=>"foo.bar.com",
     "Email"=>"blah@foo.bar.com"), $privkey )
                  )
   {
   openssl_csr_export_to_file( $csr, "out.csr");
   }
else
   {
   printf("failed\n");
   }

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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