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strftime
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strftime

Name

strftime — Formats a local time or date according to locale settings.

Synopsis

string strftime(format[, timestamp]); string format: Format for time and date int timestamp (optional): Date information to be formatted

Returns

Formatted date string; FALSE on error

Description

strftime() provides a date-formatting functionality that resembles a combination of the sprintf() and date() functions. However, it also takes into account the locale settings of the system on which it executes, so locale- and language-dependent items in the string will be formatted and printed correctly.

If timestamp is not given, the current time will be used.

Quite a large number of format specifiers are available for strftime() , but not all of them are supported by all systems. (PHP uses the underlying system calls to provide this service.) Where applicable, the following are all locale-specific. For instance, in the "C" locale, %B might produce January, while in the "fi_FI" locale, it might produce tammikuu. The format specifiers are as follows (unless otherwise noted, all integers are left-zero-padded):

%a: Weekday name, abbreviated
%A: Weekday name
%b: Month name, abbreviated
%B: Month name
%c: Preferred date-and-time representation for the current locale
%C: Century number, expressed as a two-digit integer in the range 00-99
%d: Day of the month, expressed as a two-digit integer in the range 01-31
%D: Same as %m/%d/%y
%e: Day of the month, expressed as an unpadded one-digit or two-digit integer in the range1-31
%h: Same as %b
%H: Hour, expressed as a two-digit integer in 24-hour clock format in the range00-24
%I: Hour, expressed as a two-digit integer in 12-hour clock format in the range00-12
%j: Day of the year, expressed as a three-digit integer in the range 001-366
%m: Month, expressed as an integer in the range01-12
%M: Minute, expressed as an integer in the range00-59
%n: Newline character (ASCII0x10)
%p: The string'AM'or'PM' as appropriate for the given time (may be translated for the current locale)
%r: Time in 12-hour clock format with seconds; same as %I:%M:%S %p
%R: Time in 24-hour clock format without seconds; same as %H:%M
%S: Seconds, expressed as a two-digit decimal number in the range 00-59
%t: Tab character (ASCII0x9)
%T: Time in 24-hour clock format with seconds; same as %H:%M:S
%u: Weekday expressed as a single-digit integer in the range 1-7, where Monday is day1
%U: Week number, expressed as an integer in the range 00-53, where the first Sunday is the first day of the first week
%V: Week number, expressed as an integer in the range 00-53, where week01 is the first week with four or more of its days within the year, and Monday as the first day of the week (ISO 8601:1998 format)
%W: Week number, expressed as an integer in the range 00-53, where the first Monday is the first day of the first week
%x: Date expressed in the preferred representation for the current locale, not including the time
%X: Time expressed in the preferred representation for the current locale, not including the date
%y: Year, expressed as a two-digit integer in the range 00-99
%Y: Year, expressed as a two-digit integer in the range 1970-2037
%Z: Current time zone or its name or abbreviation
%%: Literal percent sign

Version

PHP 3, PHP 4

Example

Example 207. Use strftime()

/* When tested at 23:30 on April 19, 2001 in 
 * western Canada, the following code
 * produced this output:
 *
 * It is now Thursday April 19, 2001, at 23:30:11 (time zone: PDT).
 */

/* Print the current date, time, and time zone. */
echo strftime("It is now %A %B %e, 2001, at %X (time zone: %Z).\n", time());

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.