(PHP 5 >= 5.2.0, PHP 7)
openssl_csr_get_subject — Returns the subject of a CSR
openssl_csr_get_subject() returns subject
distinguished name information encoded in the csr
including fields commonName (CN), organizationName (O), countryName (C) etc.
csrSee CSR parameters for a list of valid values.
use_shortnames
shortnames controls how the data is indexed in the
array - if shortnames is TRUE (the default) then
fields will be indexed with the short name form, otherwise, the long name
form will be used - e.g.: CN is the shortname form of commonName.
Returns TRUE on success or FALSE on failure.
Example #1 openssl_csr_get_subject() example
<?php
$subject = array(
"countryName" => "CA",
"stateOrProvinceName" => "Alberta",
"localityName" => "Calgary",
"organizationName" => "XYZ Widgets Inc",
"organizationalUnitName" => "PHP Documentation Team",
"commonName" => "Wez Furlong",
"emailAddress" => "wez@example.com",
);
$private_key = openssl_pkey_new(array(
"private_key_bits" => 2048,
"private_key_type" => OPENSSL_KEYTYPE_RSA,
));
$configargs = array(
'digest_alg' => 'sha512WithRSAEncryption'
);
$csr = openssl_csr_new($subject, $privkey, $configargs);
print_r(openssl_csr_get_subject($csr));
?>
The above example will output something similar to:
Array
(
[C] => CA
[ST] => Alberta
[L] => Calgary
[O] => XYZ Widgets Inc
[OU] => PHP Documentation Team
[CN] => Wez Furlong
[emailAddress] => wez@example.com
)