openssl_pkey_get_public
PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
openssl_pkey_get_public - Extract public key from certificate and prepare it for use
Manual
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_key
-
public_key can be one of the following:
an OpenSSLAsymmetricKey instance
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.
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. |