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<?php var_dump(unserialize('a:2:{i:0;O:8:"stdClass":0:{}i:1;O:12:"DateInterval":1:{s:1:"y";R:2;}}'));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(2) { [0]=> object(stdClass)#1 (0) { } [1]=> object(DateInterval)#2 (10) { ["y"]=> int(-1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["f"]=> float(0) ["invert"]=> int(0) ["days"]=> int(-1) ["from_string"]=> bool(false) } }
Output for 7.4.26 - 7.4.33, 8.0.13 - 8.0.30, 8.1.0 - 8.1.28
array(2) { [0]=> &object(stdClass)#1 (0) { } [1]=> object(DateInterval)#2 (16) { ["y"]=> int(-1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["f"]=> float(0) ["weekday"]=> int(-1) ["weekday_behavior"]=> int(-1) ["first_last_day_of"]=> int(-1) ["invert"]=> int(0) ["days"]=> int(-1) ["special_type"]=> int(0) ["special_amount"]=> int(-1) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } }
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.25, 8.0.0 - 8.0.12
array(2) { [0]=> &object(stdClass)#1 (0) { } [1]=> object(DateInterval)#2 (16) { ["y"]=> int(-1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["f"]=> float(-1) ["weekday"]=> int(-1) ["weekday_behavior"]=> int(-1) ["first_last_day_of"]=> int(-1) ["invert"]=> int(0) ["days"]=> int(-1) ["special_type"]=> int(0) ["special_amount"]=> int(-1) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } }
Output for 5.5.28 - 5.5.38, 5.6.12 - 5.6.40, 7.0.12 - 7.0.33
array(2) { [0]=> &object(stdClass)#1 (0) { } [1]=> object(DateInterval)#2 (15) { ["y"]=> int(-1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["weekday"]=> int(-1) ["weekday_behavior"]=> int(-1) ["first_last_day_of"]=> int(-1) ["invert"]=> int(0) ["days"]=> int(-1) ["special_type"]=> int(0) ["special_amount"]=> int(-1) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } }
Output for 7.0.0 - 7.0.11
Notice: Object of class stdClass could not be converted to int in /in/PFtkK on line 3 array(2) { [0]=> &object(stdClass)#1 (0) { } [1]=> object(DateInterval)#2 (15) { ["y"]=> int(1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["weekday"]=> int(-1) ["weekday_behavior"]=> int(-1) ["first_last_day_of"]=> int(-1) ["invert"]=> int(0) ["days"]=> int(-1) ["special_type"]=> int(0) ["special_amount"]=> int(-1) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } }
Output for 5.5.0 - 5.5.27, 5.6.0 - 5.6.11
Notice: Object of class stdClass could not be converted to int in /in/PFtkK on line 3 array(2) { [0]=> &int(1) [1]=> object(DateInterval)#2 (15) { ["y"]=> int(1) ["m"]=> int(-1) ["d"]=> int(-1) ["h"]=> int(-1) ["i"]=> int(-1) ["s"]=> int(-1) ["weekday"]=> int(-1) ["weekday_behavior"]=> int(-1) ["first_last_day_of"]=> int(-1) ["invert"]=> int(0) ["days"]=> int(-1) ["special_type"]=> int(0) ["special_amount"]=> int(-1) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } }

preferences:
186.71 ms | 403 KiB | 330 Q