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

    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_key

    public_key can be one of the following:

    1. an OpenSSLAsymmetricKey instance
    2. 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).
    3. 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.

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top