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<?php $today = unixtojd(mktime(0, 0, 0, 8, 16, 2003)); echo $today . '<br>'; print_r(cal_from_jd($today, CAL_GREGORIAN));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Call to undefined function unixtojd() in /in/30otP:2 Stack trace: #0 {main} thrown in /in/30otP on line 2
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function unixtojd() in /in/30otP on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29
2452868<br>Array ( [date] => 8/16/2003 [month] => 8 [day] => 16 [year] => 2003 [dow] => 6 [abbrevdayname] => Sat [dayname] => Saturday [abbrevmonth] => Aug [monthname] => August )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
2456401<br>Array ( [date] => 4/18/2013 [month] => 4 [day] => 18 [year] => 2013 [dow] => 4 [abbrevdayname] => Thu [dayname] => Thursday [abbrevmonth] => Apr [monthname] => April )

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309.63 ms | 403 KiB | 457 Q