PHP 生成CSR代码

可以使用以下PHP代码生成CSR（证书签名请求）：

$dn = array(
    "countryName" => "Country Name (2 letter code)",
    "stateOrProvinceName" => "State or Province Name",
    "localityName" => "Locality Name",
    "organizationName" => "Organization Name",
    "organizationalUnitName" => "Organizational Unit Name",
    "commonName" => "Common Name",
    "emailAddress" => "Email Address"
);

// Generate a new private (and public) key pair
$privkey = openssl_pkey_new(array(
    'private_key_bits' => 2048,
    'private_key_type' => OPENSSL_KEYTYPE_RSA,
));

// Generate a certificate signing request
$csr = openssl_csr_new($dn, $privkey);

// Get the CSR data
openssl_csr_export($csr, $csrout);

// Display the CSR data
echo "<pre>$csrout</pre>";

在上面的代码中，您需要替换 `$dn` 数组中的示例值为您的实际值。此代码将生成一个新的 2048 位 RSA 密钥对和一个新的 CSR，并将 CSR 数据输出到屏幕上。