diff --git a/ext/uri/php_lexbor.c b/ext/uri/php_lexbor.c
index 82f3919bb6a97..d32361213257a 100644
--- a/ext/uri/php_lexbor.c
+++ b/ext/uri/php_lexbor.c
@@ -73,10 +73,12 @@ static void lexbor_cleanup_parser(void)
  * When errors is NULL, the caller is not interested in the additional error information,
  * so the function does nothing.
  */
-static void fill_errors(zval *errors)
+static zend_string *fill_errors(zval *errors)
 {
+	zend_string *result = NULL;
+
 	if (errors == NULL) {
-		return;
+		return result;
 	}
 
 	ZEND_ASSERT(Z_ISUNDEF_P(errors));
@@ -84,7 +86,7 @@ static void fill_errors(zval *errors)
 	array_init(errors);
 
 	if (lexbor_parser.log == NULL) {
-		return;
+		return result;
 	}
 
 	lexbor_plog_entry_t *lxb_error;
@@ -223,32 +225,14 @@ static void fill_errors(zval *errors)
 
 		zend_update_property(uri_whatwg_url_validation_error_ce, Z_OBJ(error), ZEND_STRL("failure"), &failure);
 
+		if (Z_TYPE(failure) == IS_TRUE) {
+			result = error_str;
+		}
+
 		add_next_index_zval(errors, &error);
 	}
-}
-
-static void throw_invalid_url_exception(zval *errors)
-{
-	ZEND_ASSERT(errors != NULL && Z_TYPE_P(errors) == IS_ARRAY);
-
-	zval exception;
 
-	object_init_ex(&exception, uri_whatwg_invalid_url_exception_ce);
-
-	zval value;
-	ZVAL_STRING(&value, "URL parsing failed");
-	zend_update_property_ex(uri_whatwg_invalid_url_exception_ce, Z_OBJ(exception), ZSTR_KNOWN(ZEND_STR_MESSAGE), &value);
-	zval_ptr_dtor_str(&value);
-
-	zend_update_property(uri_whatwg_invalid_url_exception_ce, Z_OBJ(exception), ZEND_STRL("errors"), errors);
-
-	zend_throw_exception_object(&exception);
-}
-
-static void throw_invalid_url_exception_during_write(zval *errors)
-{
-	fill_errors(errors);
-	throw_invalid_url_exception(errors);
+	return result;
 }
 
 static lxb_status_t lexbor_serialize_callback(const lxb_char_t *data, size_t length, void *ctx)
@@ -281,7 +265,9 @@ static zend_result lexbor_write_scheme(struct uri_internal_t *internal_uri, zval
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_protocol_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified scheme is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -310,7 +296,9 @@ static zend_result lexbor_write_username(uri_internal_t *internal_uri, zval *val
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_username_set(lexbor_uri, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified username is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -339,7 +327,9 @@ static zend_result lexbor_write_password(struct uri_internal_t *internal_uri, zv
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_password_set(lexbor_uri, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified password is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -411,7 +401,9 @@ static zend_result lexbor_write_host(struct uri_internal_t *internal_uri, zval *
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_hostname_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified host is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -440,7 +432,9 @@ static zend_result lexbor_write_port(struct uri_internal_t *internal_uri, zval *
 	zval_long_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_port_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified port is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -469,7 +463,9 @@ static zend_result lexbor_write_path(struct uri_internal_t *internal_uri, zval *
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_pathname_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified path is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -498,7 +494,9 @@ static zend_result lexbor_write_query(struct uri_internal_t *internal_uri, zval
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_search_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified query string is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -527,7 +525,9 @@ static zend_result lexbor_write_fragment(struct uri_internal_t *internal_uri, zv
 	zval_string_or_null_to_lexbor_str(value, &str);
 
 	if (lxb_url_api_hash_set(lexbor_uri, &lexbor_parser, str.data, str.length) != LXB_STATUS_OK) {
-		throw_invalid_url_exception_during_write(errors);
+		zend_string *reason = fill_errors(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified fragment is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 
 		return FAILURE;
 	}
@@ -569,10 +569,11 @@ lxb_url_t *lexbor_parse_uri_ex(const zend_string *uri_str, const lxb_url_t *lexb
 	lexbor_cleanup_parser();
 
 	lxb_url_t *url = lxb_url_parse(&lexbor_parser, lexbor_base_url, (unsigned char *) ZSTR_VAL(uri_str), ZSTR_LEN(uri_str));
-	fill_errors(errors);
+	zend_string *reason = fill_errors(errors);
 
 	if (url == NULL && !silent) {
-		throw_invalid_url_exception(errors);
+		zend_object *exception = zend_throw_exception_ex(uri_whatwg_invalid_url_exception_ce, 0, "The specified URI is malformed%s%s%s", reason ? " (" : "", reason ? ZSTR_VAL(reason) : "", reason ? ")" : "");
+		zend_update_property(exception->ce, exception, ZEND_STRL("errors"), errors);
 	}
 
 	return url;
diff --git a/ext/uri/tests/004.phpt b/ext/uri/tests/004.phpt
index 04127a7ded0d3..abbad59fee2e8 100644
--- a/ext/uri/tests/004.phpt
+++ b/ext/uri/tests/004.phpt
@@ -18,8 +18,8 @@ var_dump(Uri\WhatWg\Url::parse("192.168/contact.html", null));
 var_dump(Uri\WhatWg\Url::parse("http://RuPaul's Drag Race All Stars 7 Winners Cast on This Season's", null));
 
 ?>
---EXPECTF--
-URL parsing failed
+--EXPECT--
+The specified URI is malformed (MissingSchemeNonRelativeUrl)
 NULL
 NULL
 NULL
diff --git a/ext/uri/tests/007.phpt b/ext/uri/tests/007.phpt
index e60e69fc113a3..cb445fcf71a43 100644
--- a/ext/uri/tests/007.phpt
+++ b/ext/uri/tests/007.phpt
@@ -19,7 +19,7 @@ var_dump($failures);
 
 ?>
 --EXPECTF--
-URL parsing failed
+The specified URI is malformed (PortInvalid)
 array(%d) {
   [0]=>
   object(Uri\WhatWg\UrlValidationError)#%d (%d) {
diff --git a/ext/uri/tests/023.phpt b/ext/uri/tests/023.phpt
index b48e2df838eef..a1ca06bd6f6e5 100644
--- a/ext/uri/tests/023.phpt
+++ b/ext/uri/tests/023.phpt
@@ -27,5 +27,5 @@ try {
 --EXPECT--
 string(5) "https"
 string(4) "http"
-URL parsing failed
-URL parsing failed
+The specified scheme is malformed
+The specified scheme is malformed
diff --git a/ext/uri/tests/026.phpt b/ext/uri/tests/026.phpt
index 4640ebebae52d..4763ea9d4406c 100644
--- a/ext/uri/tests/026.phpt
+++ b/ext/uri/tests/026.phpt
@@ -43,7 +43,7 @@ string(8) "test.com"
 string(8) "test.com"
 string(8) "test.com"
 NULL
-URL parsing failed
+The specified host is malformed (DomainInvalidCodePoint)
 object(Uri\WhatWg\Url)#%d (%d) {
   ["scheme"]=>
   string(5) "https"
@@ -62,6 +62,6 @@ object(Uri\WhatWg\Url)#%d (%d) {
   ["fragment"]=>
   NULL
 }
-URL parsing failed
+The specified host is malformed (HostMissing)
 string(7) "foo.com"
 string(8) "test.com"
diff --git a/ext/uri/tests/051.phpt b/ext/uri/tests/051.phpt
index 5911f8767567c..ad4751470e23b 100644
--- a/ext/uri/tests/051.phpt
+++ b/ext/uri/tests/051.phpt
@@ -20,7 +20,7 @@ var_dump($softErrors);
 
 ?>
 --EXPECTF--
-URL parsing failed
+The specified URI is malformed (Ipv4TooManyParts)
 string(23) "https://example.com/foo"
 array(%d) {
   [0]=>