@ 2014-10-07T12:27:41Z <?php
if(!function_exists('cal_days_in_month')) {
function cal_days_in_month($calendar, $month, $year) {
return $month == 2 ? ($year % 4 ? 28 : ($year % 100 ? 29 : ($year % 400 ? 28 : 29))) : (($month - 1) % 7 % 2 ? 30 : 31);
}
if (!defined('CAL_GREGORIAN')) {
define('CAL_GREGORIAN', 1);
}
}
//tests
echo '----- Basic Tests ----';
var_dump(cal_days_in_month(CAL_GREGORIAN, 1, 2014)); //31
var_dump(cal_days_in_month(CAL_GREGORIAN, 2, 2014)); //28
var_dump(cal_days_in_month(CAL_GREGORIAN, 10, 2014)); //31
var_dump(cal_days_in_month(CAL_GREGORIAN, 11, 2014)); //30
echo '----- Leap Years ----';
//some leap years - expect 29 for all
var_dump(cal_days_in_month(CAL_GREGORIAN, 2, 1804));
var_dump(cal_days_in_month(CAL_GREGORIAN, 2, 2000));
var_dump(cal_days_in_month(CAL_GREGORIAN, 2, 2056));
var_dump(cal_days_in_month(CAL_GREGORIAN, 2, 1994));
echo '----- Invalid tests ----';
//some invalid ones:
var_dump(cal_days_in_month(CAL_GREGORIAN, 1, 1));
var_dump(cal_days_in_month(CAL_GREGORIAN, 14, 2014)); //might be feb 2015?
var_dump(cal_days_in_month(CAL_GREGORIAN, 1, 2014000)); //the far far future?
var_dump(cal_days_in_month(CAL_GREGORIAN, 0, 2014)); //do we handle zero?
var_dump(cal_days_in_month(CAL_GREGORIAN, -1, 2014)); //how about negative?
var_dump(cal_days_in_month(CAL_GREGORIAN, 1, 0)); //and years?
var_dump(cal_days_in_month(CAL_GREGORIAN, 1, -1)); //negative years?
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Output for 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 , 5.6.0 - 5.6.38 , 7.0.0 - 7.0.31 , 7.1.0 - 7.1.23 , 7.2.0 - 7.2.33 , 7.3.16 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.27 , 8.2.0 - 8.2.17 , 8.3.0 - 8.3.4 ----- Basic Tests ----int(31)
int(28)
int(31)
int(30)
----- Leap Years ----int(29)
int(29)
int(29)
int(28)
----- Invalid tests ----int(31)
int(31)
int(31)
int(30)
int(31)
int(31)
int(31)
Output for 4.4.0 - 4.4.9 , 5.0.5 , 5.1.1 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 ----- Basic Tests ----int(31)
int(28)
int(31)
int(30)
----- Leap Years ----int(29)
int(29)
int(29)
int(28)
----- Invalid tests ----int(31)
Warning: cal_days_in_month(): invalid date. in /in/fLm5U on line 32
bool(false)
int(31)
Warning: cal_days_in_month(): invalid date. in /in/fLm5U on line 34
bool(false)
Warning: cal_days_in_month(): invalid date. in /in/fLm5U on line 35
bool(false)
Warning: cal_days_in_month(): invalid date. in /in/fLm5U on line 36
bool(false)
int(31)
Output for 5.1.0 Fatal error: fatal flex scanner internal error--end of buffer missed in /in/fLm5U on line 37
Process exited with code 255 . Output for 4.3.0 - 4.3.11 , 5.0.0 - 5.0.4 ----- Basic Tests ----int(31)
int(28)
int(31)
int(30)
----- Leap Years ----int(29)
int(29)
int(29)
int(28)
----- Invalid tests ----int(31)
int(2457024)
int(31)
int(2456659)
int(2457024)
int(1721426)
int(31)
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