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Full Discussion: strftime equivalent in c++
Top Forums Programming strftime equivalent in c++ Post 302542028 by shamrock on Tuesday 26th of July 2011 12:04:32 PM
Old 07-26-2011
Not unless you keep a record of past present and future cal years...things like weekday monthday yearday year month day leap years etc etc...which is no easy thing to track for a programmer. The kernel maintains that for you so doing it yourself would be costlier and laborious.
 

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STRPTIME(3)								 1							       STRPTIME(3)

strptime - Parse a time/date generated withstrftime(3)

SYNOPSIS
array strptime (string $date, string $format) DESCRIPTION
strptime(3) returns an array with the $date parsed, or FALSE on error. Month and weekday names and other language dependent strings respect the current locale set with setlocale(3) ( LC_TIME). PARAMETERS
o $date ( string) - The string to parse (e.g. returned from strftime(3)). o $format ( string) - The format used in $date (e.g. the same as used in strftime(3)). Note that some of the format options available to strf- time(3) may not have any effect within strptime(3); the exact subset that are supported will vary based on the operating system and C library in use. For more information about the format options, read the strftime(3) page. RETURN VALUES
Returns an array or FALSE on failure. The following parameters are returned in the array +-----------+---------------------------------------------------+ |parameters | | | | | | | Description | | | | +-----------+---------------------------------------------------+ | | | | "tm_sec" | | | | | | | Seconds after the minute (0-61) | | | | | | | | "tm_min" | | | | | | | Minutes after the hour (0-59) | | | | | | | |"tm_hour" | | | | | | | Hour since midnight (0-23) | | | | | | | |"tm_mday" | | | | | | | Day of the month (1-31) | | | | | | | | "tm_mon" | | | | | | | Months since January (0-11) | | | | | | | |"tm_year" | | | | | | | Years since 1900 | | | | | | | |"tm_wday" | | | | | | | Days since Sunday (0-6) | | | | | | | |"tm_yday" | | | | | | | Days since January 1 (0-365) | | | | | | | |"unparsed" | | | | | | | the $date part which was not recognized using the | | | specified $format | | | | +-----------+---------------------------------------------------+ EXAMPLES
Example #1 strptime(3) example <?php $format = '%d/%m/%Y %H:%M:%S'; $strf = strftime($format); echo "$strf "; print_r(strptime($strf, $format)); ?> The above example will output something similar to: 03/10/2004 15:54:19 Array ( [tm_sec] => 19 [tm_min] => 54 [tm_hour] => 15 [tm_mday] => 3 [tm_mon] => 9 [tm_year] => 104 [tm_wday] => 0 [tm_yday] => 276 [unparsed] => ) NOTES
Note This function is not implemented on Windows platforms. Note Internally, this function calls the strptime() function provided by the system's C library. This function can exhibit noticeably different behaviour across different operating systems. The use of date_parse_from_format(3), which does not suffer from these issues, is recommended on PHP 5.3.0 and later. Note "tm_sec" includes any leap seconds (currently upto 2 a year). For more information on leap seconds, see the Wikipedia article on leap seconds. Note Prior to PHP 5.2.0, this function could return undefined behaviour. Notably, the "tm_sec", "tm_min" and "tm_hour" entries would return undefined values. SEE ALSO
checkdate(3), strftime(3), date_parse_from_format(3), DateTime.createFromFormat(3). PHP Documentation Group STRPTIME(3)
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