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I have three servers, doing the following on all three servers:
echo strtotime('2099-12-31');
echo strtotime(date('Y-m-d'));
gets me:
Server #1: (php 5.3.8, 64bit)
4102376400
1328418000
Server 2: (php 5.3.2, 32bit)
**[nothing]**
1328418000
Server #3: (php 5.3.2 - 64bit I thought it might be a php version issue)
4102376400
1328418000
What would cause strtotime to fail on one of the servers but not the others? All three have the same Default timezone and date.timezone settings in php.ini (not sure if that would have an effect or not). I also turned on errors and I'm not seeing anything.
399
Code for converting a string to date$time_input = strtotime ( "2011/05/21" ); $date_input = getDate ( $time_input );
If the date string isn't understood by strtotime() then it will return false. When this happens you can try a few things to force strtotime() to parse the date correctly. Sometimes it's something as simple as swapping the slashes for dashes, which forces strtotime() to parse the date in a different way.
The strtotime() function parses an English textual datetime into a Unix timestamp (the number of seconds since January 1 1970 00:00:00 GMT). Note: If the year is specified in a two-digit format, values between 0-69 are mapped to 2000-2069 and values between 70-100 are mapped to 1970-2000.
If you want to use the PHP function strtotime to add or subtract a number of days, weeks, months or years from a date other than the current time, you can do it by passing the second optional parameter to the strtotime() function, or by adding it into the string which defines the time to parse.
Probably it is a 32-bit issue. It works just fine on my 64-Bit Server, but my 32-bit Ubuntu returns false on strtotime('2099-12-31')
For further information see this note in the manual (highlighting by me):
The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 UTC to Tue, 19 Jan 2038 03:14:07 UTC. (These are the dates that correspond to the minimum and maximum values for a 32-bit signed integer.) Additionally, not all platforms support negative timestamps, therefore your date range may be limited to no earlier than the Unix epoch. This means that e.g. dates prior to Jan 1, 1970 will not work on Windows, some Linux distributions, and a few other operating systems. PHP 5.1.0 and newer versions overcome this limitation though.
For 64-bit versions of PHP, the valid range of a timestamp is effectively infinite, as 64 bits can represent approximately 293 billion years in either direction.
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