Description:
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strtotime still fails (as of version 4.3.8) to appropriately parse dates prior to 1-1-1970 in Windows builds. Reproducable with dates in various formats: MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD.

Validation/conversion of dates prior to 1970 are frequently needed for applications that accept user input for birthdates. 


Reproduce code:
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print strtotime('04/28/1964');
print strtotime('4/28/64');
print strtotime('1964-04-28');
print strtotime('28/4/1964');

Expected result:
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expect timestamps with the appropriate value (instead of -1);

Actual result:
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-1
-1
-1
-1