--TEST-- openssl_x509_export_to_file() tests --SKIPIF-- --FILE-- getMessage() . "\n"; } echo "---\n"; var_dump($exists = file_exists($outfilename)); ?> --CLEAN-- --EXPECTF-- bool(true) bool(true) Warning: openssl_x509_export_to_file(): X.509 Certificate cannot be retrieved in %s on line %d bool(false) bool(true) openssl_x509_export_to_file(): Argument #1 ($certificate) must be of type OpenSSLCertificate|string, array given --- bool(true)