diff -up ./ext/openssl/openssl_backend_v1.c.ec-param ./ext/openssl/openssl_backend_v1.c
--- ./ext/openssl/openssl_backend_v1.c.ec-param	2025-06-30 15:57:32.345876147 +0200
+++ ./ext/openssl/openssl_backend_v1.c	2025-06-30 15:59:43.380395611 +0200
@@ -256,13 +256,8 @@ static bool php_openssl_pkey_init_ec_dat
 		OPENSSL_PKEY_SET_BN(data, b);
 		OPENSSL_PKEY_SET_BN(data, order);
 
+		php_error_docref(NULL, E_WARNING, "Missing params: curve_name (params only is not supported by OpenSSL)");
 		if (!(p && a && b && order)) {
-			if (!p && !a && !b && !order) {
-				php_error_docref(NULL, E_WARNING, "Missing params: curve_name");
-			} else {
-				php_error_docref(
-					NULL, E_WARNING, "Missing params: curve_name or p, a, b, order");
-			}
 			goto clean_exit;
 		}
 
diff -up ./ext/openssl/openssl_backend_v3.c.ec-param ./ext/openssl/openssl_backend_v3.c
--- ./ext/openssl/openssl_backend_v3.c.ec-param	2025-06-30 15:57:38.753560492 +0200
+++ ./ext/openssl/openssl_backend_v3.c	2025-06-30 16:01:02.221616267 +0200
@@ -312,12 +312,8 @@ EVP_PKEY *php_openssl_pkey_init_ec(zval
 		OPENSSL_PKEY_SET_BN(data, b);
 		OPENSSL_PKEY_SET_BN(data, order);
 
+		php_error_docref(NULL, E_WARNING, "Missing params: curve_name (params only is not supported by OpenSSL)");
 		if (!(p && a && b && order)) {
-			if (!p && !a && !b && !order) {
-				php_error_docref(NULL, E_WARNING, "Missing params: curve_name");
-			} else {
-				php_error_docref(NULL, E_WARNING, "Missing params: curve_name or p, a, b, order");
-			}
 			goto cleanup;
 		}