Move to non deprecated API on suitable ICU versions

Author: weltling

ext/intl/idn/idn.c

@@ -218,16 +218,34 @@ static void php_intl_idn_to(INTERNAL_FUNCTION_PARAMETERS,
 		}
 		RETURN_FALSE;
 	} else {
-		UParseError parse_error;
 		UChar       converted[MAXPATHLEN];
 		int32_t     converted_ret_len;
 
 		status = U_ZERO_ERROR;
+
+#if U_ICU_VERSION_MAJOR_NUM >= 55
+		UIDNAInfo info = UIDNA_INFO_INITIALIZER;
+		UIDNA *idna = uidna_openUTS46((int32_t)option, &status);
+
+		if (U_FAILURE(status)) {
+			intl_error_set( NULL, status, "idn_to_ascii: failed to create an UIDNA instance", 0 );
+			RETURN_FALSE;
+		}
+
+		if (mode == INTL_IDN_TO_ASCII) {
+			converted_ret_len = uidna_nameToASCII(idna, ustring, ustring_len, converted, MAXPATHLEN, &info, &status);
+		} else {
+			converted_ret_len = uidna_nameToUnicode(idna, ustring, ustring_len, converted, MAXPATHLEN, &info, &status);
+		}
+		uidna_close(idna);
+#else
+		UParseError parse_error;
 		if (mode == INTL_IDN_TO_ASCII) {
 			converted_ret_len = uidna_IDNToASCII(ustring, ustring_len, converted, MAXPATHLEN, (int32_t)option, &parse_error, &status);
 		} else {
 			converted_ret_len = uidna_IDNToUnicode(ustring, ustring_len, converted, MAXPATHLEN, (int32_t)option, &parse_error, &status);
 		}
+#endif
 		efree(ustring);
 
 		if (U_FAILURE(status)) {