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PHP Function gmstrftime()

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Syntax

string gmstrftime ( string $format [, int $timestamp] );

Definition and Usage

Behaves the same as strftime() except that the time returned is Greenwich Mean Time (GMT).

Paramters

ParameterDescription
formatrequired.Specifies how to return the result:
    • %a - abbreviated weekday name
    • %A - full weekday name
    • %b - abbreviated month name
    • %B - full month name
    • %c - preferred date and time representation
    • %C - century number (the year divided by 100, range 00 to 99)
    • %d - day of the month (01 to 31)
    • %D - same as %m/%d/%y
    • %e - day of the month (1 to 31)
    • %g - like %G, but without the century
    • %G - 4-digit year corresponding to the ISO week number (see %V).
    • %h - same as %b
    • %H - hour, using a 24-hour clock (00 to 23)
    • %I - hour, using a 12-hour clock (01 to 12)
    • %j - day of the year (001 to 366)
    • %m - month (01 to 12)
    • %M - minute
    • %n - newline character
    • %p - either am or pm according to the given time value
    • %r - time in a.m. and p.m. notation
    • %R - time in 24 hour notation
    • %S - second
    • %t - tab character
    • %T - current time, equal to %H:%M:%S
    • %u - weekday as a number (1 to 7), Monday=1. Warning: In Sun Solaris Sunday=1
    • %U - week number of the current year, starting with the first Sunday as the first day of the first week
    • %V - The ISO 8601 week number of the current year (01 to 53), where week 1 is the first week that has at least 4 days in the current year, and with Monday as the first day of the week
    • %W - week number of the current year, starting with the first Monday as the first day of the first week
    • %w - day of the week as a decimal, Sunday=0
    • %x - preferred date representation without the time
    • %X - preferred time representation without the date
    • %y - year without a century (range 00 to 99)
    • %Y - year including the century
    • %Z or %z - time zone or name or abbreviation
    • %% - a literal % character
timestampOptional. This is an integer Unix timestamp that defaults to the current local time if a timestamp is not given. In other words, it defaults to the value of time().

Return Value

Returns a string formatted according to the given format string using the given timestamp or the current local time if no timestamp is given.

Example

Following is the usage of this function:

<?php
setlocale(LC_TIME, 'en_US');
echo strftime("%b %d %Y %H:%M:%S",
               mktime(20, 0, 0, 12, 31, 2005)) . "\n";
echo gmstrftime("%b %d %Y %H:%M:%S",
               mktime(20, 0, 0, 12, 31, 2005)) . "\n";
?>

This will produce following result:

Dec 31 2005 20:00:00
Jan 01 2006 03:00:00
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