Returns the public key of a CERT openssl_csr_export openssl_csr_get_subject OpenSSL Functions PHP Manual openssl_csr_get_public_key (PHP 5 >= 5.2.0)openssl_csr_get_public_key — Returns the public key of a CERT Description resource openssl_csr_get_public_key ( mixed $csr [, bool $use_shortnames ] ) WarningThis function is currently not documented; only its argument list is available. openssl_csr_export openssl_csr_get_subject OpenSSL Functions PHP Manual