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run code in 150+ php & hhvm versions
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<?php var_dump(date('m/d/Y', strtotime('0000-00-00')), date('m/d/Y', strtotime(false)), date('m/d/Y', strtotime(null)));
Output for 5.2.6 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
string(11) "11/30/-0001" string(10) "01/01/1970" string(10) "01/01/1970"
Output for hhvm-3.12.0
Warning: strtotime() expects parameter 1 to be string, null given in /in/KgMMq on line 2 string(11) "11/30/-0001" string(10) "01/01/1970" string(10) "01/01/1970"
Output for 5.2.4 - 5.2.5
string(10) "01/01/1970" string(10) "01/01/1970" string(10) "01/01/1970"
Output for 5.1.2 - 5.2.3
string(10) "11/30/1999" string(10) "01/01/1970" string(10) "01/01/1970"
Output for 5.1.0 - 5.1.1
string(10) "11/30/1999" string(10) "02/27/2013" string(10) "02/27/2013"
Output for 5.0.1 - 5.0.5
Warning: strtotime(): Called with an empty time parameter. in /in/KgMMq on line 2 Warning: strtotime(): Called with an empty time parameter. in /in/KgMMq on line 2 string(10) "11/30/1999" string(10) "01/01/1970" string(10) "01/01/1970"
Output for 4.3.2 - 5.0.0
Notice: strtotime(): Called with empty time parameter in /in/KgMMq on line 2 Notice: strtotime(): Called with empty time parameter in /in/KgMMq on line 2 string(10) "11/30/1999" string(10) "02/27/2013" string(10) "02/27/2013"
Output for 4.3.0 - 4.3.1
Notice: strtotime() [http://www.php.net/function.strtotime]: Called with empty time parameter in /in/KgMMq on line 2 Notice: strtotime() [http://www.php.net/function.strtotime]: Called with empty time parameter in /in/KgMMq on line 2 string(10) "11/30/1999" string(10) "02/27/2013" string(10) "02/27/2013"