openssl_pkey_get_public

Description

Returns a positive key resource identifier on success, or FALSE on error.

openssl_get_publickey() extracts the public key from certificate and prepares it for use by other functions. certificate can be one of the following:

1. an X.509 certificate resource

2. a string having the format file://path/to/file.pem. The named file must contain a PEM encoded certificate/private key (it may contain both).

3. A PEM formatted private key.