1 files changed, 46 insertions, 0 deletions
diff --git a/ext/calendar/calendar.stub.php b/ext/calendar/calendar.stub.php
new file mode 100644
index 0000000000..da08cd7037
--- /dev/null
+++ b/ext/calendar/calendar.stub.php
@@ -0,0 +1,46 @@
+<?php
+
+/** @return int|false */
+function cal_days_in_month(int $calendar, int $month, int $year) {}
+
+/** @return array<string, array<int, string>&int&string>|false */
+function cal_from_jd(int $jd, int $calendar) {}
+
+/** @return array|false */
+function cal_info(?int $calendar = UNKNOWN) {}
+
+/** @return int|false */
+function cal_to_jd(int $calendar, int $month, int $day, int $year) {}
+
+/** @return int|false */
+function easter_date(int $year = UNKNOWN, int $method = CAL_EASTER_DEFAULT) {}
+
+function easter_days(int $year = UNKNOWN, int $method = CAL_EASTER_DEFAULT): int {}
+
+function frenchtojd(int $month, int $day, int $year): int {}
+
+function gregoriantojd(int $month, int $day, int $year): int {}
+
+/** @return int|string */
+function jddayofweek(int $juliandaycount, int $mode = CAL_DOW_DAYNO) {}
+
+function jdmonthname(int $juliandaycount, int $mode): string {}
+
+function jdtofrench(int $juliandaycount): string {}
+
+function jdtogregorian(int $juliandaycount): string {}
+
+/** @return string|false */
+function jdtojewish(int $juliandaycount, bool $hebrew = false, int $fl = 0) {}
+
+function jdtojulian(int $juliandaycount): string {}
+
+/** @return int|false */
+function jdtounix(int $jday) {}
+
+function jewishtojd(int $month, int $day, int $year): int {}
+
+function juliantojd(int $month, int $day, int $year): int {}
+
+/** @return int|false */
+function unixtojd(int $timestamp = UNKNOWN) {}