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run code in 150+ php & hhvm versions
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<?php // Set demo vars $year = 2012; $months = array(10,11,12); $days = array(01,02,03,04,06,07,08,09,11,12,13,14,16,17,18,19,21,22,23,24,26,27,28,29,31); foreach($months AS $month) foreach($days AS $day) $datesWS[] = new DateTime(implode('-',array($year,$month,$day))); // Push DateTime object to the WebService array /* // Sort dates usort($datesWS, function ($a, $b){ return $a == $b ? 0 : $a > $b ? 1 : -1; }); $dateIni = count($datesWS)>0 ? reset($datesWS) : 0; // Get first date $dateEnd = count($datesWS)>0 ? end($datesWS) : 0; // Get last date $interval = new DateInterval('P1D'); // Set date interval as 1 day // Generate dates range and Transform iterator to array $datesRange = iterator_to_array(new DatePeriod($dateIni, $interval, $dateEnd->modify( '+1 day' ))); // This way seems to work foreach($datesRange AS $date) { if(!in_array($date->format('d/m/Y'),array_values(array_map(function($obj){ return $obj->format('d/m/Y'); },$datesWS)))) $excludeDates[] = $date->format('d/m/Y'); } // This way should be more efficient, but I'm fed up with it! // Get excluded dates $excludeDates = array_udiff($datesRange, $datesWS, function ($a, $b) { return $a == $b ? 0 : 1; }); // Comment/Uncomment this in order to print this method or the other one */ // Print array(objects) as array(strings) var_dump(array_values(array_map(function($obj){ return $obj->format('d/m/Y'); },$datesWS)));/* var_dump(array_values(array_map(function($obj){ return $obj->format('d/m/Y'); },$datesRange))); var_dump(array_values(array_map(function($obj){ return $obj->format('d/m/Y'); },$excludeDates)));*/ ?>
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
array(75) { [0]=> string(10) "01/10/2012" [1]=> string(10) "02/10/2012" [2]=> string(10) "03/10/2012" [3]=> string(10) "04/10/2012" [4]=> string(10) "06/10/2012" [5]=> string(10) "07/10/2012" [6]=> string(10) "30/09/2012" [7]=> string(10) "30/09/2012" [8]=> string(10) "11/10/2012" [9]=> string(10) "12/10/2012" [10]=> string(10) "13/10/2012" [11]=> string(10) "14/10/2012" [12]=> string(10) "16/10/2012" [13]=> string(10) "17/10/2012" [14]=> string(10) "18/10/2012" [15]=> string(10) "19/10/2012" [16]=> string(10) "21/10/2012" [17]=> string(10) "22/10/2012" [18]=> string(10) "23/10/2012" [19]=> string(10) "24/10/2012" [20]=> string(10) "26/10/2012" [21]=> string(10) "27/10/2012" [22]=> string(10) "28/10/2012" [23]=> string(10) "29/10/2012" [24]=> string(10) "31/10/2012" [25]=> string(10) "01/11/2012" [26]=> string(10) "02/11/2012" [27]=> string(10) "03/11/2012" [28]=> string(10) "04/11/2012" [29]=> string(10) "06/11/2012" [30]=> string(10) "07/11/2012" [31]=> string(10) "31/10/2012" [32]=> string(10) "31/10/2012" [33]=> string(10) "11/11/2012" [34]=> string(10) "12/11/2012" [35]=> string(10) "13/11/2012" [36]=> string(10) "14/11/2012" [37]=> string(10) "16/11/2012" [38]=> string(10) "17/11/2012" [39]=> string(10) "18/11/2012" [40]=> string(10) "19/11/2012" [41]=> string(10) "21/11/2012" [42]=> string(10) "22/11/2012" [43]=> string(10) "23/11/2012" [44]=> string(10) "24/11/2012" [45]=> string(10) "26/11/2012" [46]=> string(10) "27/11/2012" [47]=> string(10) "28/11/2012" [48]=> string(10) "29/11/2012" [49]=> string(10) "01/12/2012" [50]=> string(10) "01/12/2012" [51]=> string(10) "02/12/2012" [52]=> string(10) "03/12/2012" [53]=> string(10) "04/12/2012" [54]=> string(10) "06/12/2012" [55]=> string(10) "07/12/2012" [56]=> string(10) "30/11/2012" [57]=> string(10) "30/11/2012" [58]=> string(10) "11/12/2012" [59]=> string(10) "12/12/2012" [60]=> string(10) "13/12/2012" [61]=> string(10) "14/12/2012" [62]=> string(10) "16/12/2012" [63]=> string(10) "17/12/2012" [64]=> string(10) "18/12/2012" [65]=> string(10) "19/12/2012" [66]=> string(10) "21/12/2012" [67]=> string(10) "22/12/2012" [68]=> string(10) "23/12/2012" [69]=> string(10) "24/12/2012" [70]=> string(10) "26/12/2012" [71]=> string(10) "27/12/2012" [72]=> string(10) "28/12/2012" [73]=> string(10) "29/12/2012" [74]=> string(10) "31/12/2012" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/S0oGE on line 45
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/S0oGE on line 45
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/S0oGE on line 45
Process exited with code 255.