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PHP openssl_csr_get_public_key

PHP original manual for openssl_csr_get_public_key [ show | php.net ]

openssl_csr_get_public_key

(PHP 5 >= 5.2.0, PHP 7)

openssl_csr_get_public_key — Returns 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