openssl_pkey_get_public
PHP function
Edit on GitHub ✎
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
Extract public key from certificate and prepare it for use
Description
openssl_pkey_get_public(OpenSSLAsymmetricKey|OpenSSLCertificate|array|string $public_key): OpenSSLAsymmetricKey|false
openssl_pkey_get_public() extracts the public key from public_key and prepares it for use by other functions.
Parameters
public_keypublic_keycan be one of the following:- an
OpenSSLAsymmetricKeyinstance - a string having the format
file://path/to/file.pem. The named file must contain a PEM encoded certificate/public key (it may contain both). - A PEM formatted public key.
- an
Return Values
Returns an OpenSSLAsymmetricKey instance on success, or false on error.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | On success, this function returns an OpenSSLAsymmetricKey instance now; previously, a Resource of type OpenSSL key was returned. |
| 8.0.0 | public_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a Resource of type OpenSSL key or OpenSSL X.509 was accepted. |