OpenSSL Functions
PHP Manual

openssl_csr_get_public_key

(PHP 5 >= 5.2.0, PHP 7)

openssl_csr_get_public_keyReturns the public key of a CSR

Description

resource openssl_csr_get_public_key ( mixed $csr [, bool $use_shortnames = TRUE ] )

openssl_csr_get_public_key() extracts the public key from csr and prepares it for use by other functions.

Parameters

csr

See CSR parameters for a list of valid values.

use_shortnames
Warning

This parameter is ignored

Return Values

Returns a positive key resource identifier on success, or FALSE on error.

Examples

Example #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'];
?>

See Also


OpenSSL Functions
PHP Manual