openssl_dh_compute_key Computes shared secret for public value of remote DH key and local DH key &reftitle.description; stringopenssl_dh_compute_key stringpub_key resourcedh_key &warn.undocumented.func; &reftitle.parameters; pub_key Public key dh_key DH key &reftitle.returnvalues; Returns computed key on success or &false; on failure.