(PHP 5 >= 5.2.0, PHP 7, PHP 8)
openssl_csr_get_public_key — 返回CSR的公鑰
$csr
$use_shortnames
openssl_csr_get_public_key() 從csr中提取公鑰供其他功能使用。
csr
See CSR parameters for a list of valid values.
use_shortnames
該參數(shù)可以省略。
成功，返回一個私鑰標(biāo)識符，錯誤則返回FALSE.
示例 #1 openssl_csr_get_public_key() example
<?php$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, $private_key, array('digest_alg' => 'sha256') );$public_key = openssl_csr_get_public_key($csr);$info = openssl_pkey_get_details($public_key);echo $info['key'];?>