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<?php $data = [ [ 'ID' => 16, 'begin_date' => new \DateTime('2016-01-01 UTC'), 'end_date' => new \DateTime('2016-11-30 UTC'), ], [ 'ID' => 33, 'begin_date' => new \DateTime('2015-01-04 UTC'), 'end_date' => new \DateTime('2016-02-29 UTC'), ], ]; usort($data, function($a, $b) { // Note PHP 7 <=> doesn't work on \DateTime if($a['end_date'] == $b['end_date']) { return 0; } return $a['end_date'] > $b['end_date'] ? 1 : -1; }); var_dump($now); var_dump($data); // for programs that run over multiple seconds this makes sure we don't drift during sorting $now = new \DateTime('now'); // pick the first element that meets the criteria foreach($data as $index => $element) { if($element['begin_date'] < $now) { // first condition is invalidated echo "begin_date invalidated ID #".$element['ID'].PHP_EOL; continue; } else { var_dump($element); } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $now in /in/pFghr on line 25 NULL array(2) { [0]=> array(3) { ["ID"]=> int(33) ["begin_date"]=> object(DateTime)#3 (3) { ["date"]=> string(26) "2015-01-04 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#4 (3) { ["date"]=> string(26) "2016-02-29 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } [1]=> array(3) { ["ID"]=> int(16) ["begin_date"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2016-11-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } } begin_date invalidated ID #33 begin_date invalidated ID #16
Output for 5.5.14 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: now in /in/pFghr on line 25 NULL array(2) { [0]=> array(3) { ["ID"]=> int(33) ["begin_date"]=> object(DateTime)#3 (3) { ["date"]=> string(26) "2015-01-04 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#4 (3) { ["date"]=> string(26) "2016-02-29 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } [1]=> array(3) { ["ID"]=> int(16) ["begin_date"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2016-11-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } } begin_date invalidated ID #33 begin_date invalidated ID #16
Output for 7.3.32 - 7.3.33
NULL array(2) { [0]=> array(3) { ["ID"]=> int(33) ["begin_date"]=> object(DateTime)#3 (3) { ["date"]=> string(26) "2015-01-04 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#4 (3) { ["date"]=> string(26) "2016-02-29 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } [1]=> array(3) { ["ID"]=> int(16) ["begin_date"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2016-11-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } } begin_date invalidated ID #33 begin_date invalidated ID #16
Output for 5.5.0 - 5.5.13
Notice: Undefined variable: now in /in/pFghr on line 25 NULL array(2) { [0]=> array(3) { ["ID"]=> int(33) ["begin_date"]=> object(DateTime)#3 (3) { ["date"]=> string(19) "2015-01-04 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#4 (3) { ["date"]=> string(19) "2016-02-29 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } [1]=> array(3) { ["ID"]=> int(16) ["begin_date"]=> object(DateTime)#1 (3) { ["date"]=> string(19) "2016-01-01 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#2 (3) { ["date"]=> string(19) "2016-11-30 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } } begin_date invalidated ID #33 begin_date invalidated ID #16
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