PHP - strftime() :: 로케일 설정에 따라 현지 시간 / 날짜 형식을 지정합니다.
PHP 함수
요약
로케일 설정에 따라 현지 시간 / 날짜 형식을 지정합니다.
함수 원형
strftime ( string $format , int|null $timestamp = null ) : string|false
파라미터
strftime ( string $format , int|null $timestamp = null ) : string|false$format
날짜 형식을 지정합니다.
자세한 형식은 strftime을 참고하세요.
날짜 형식
| 형식 | 설명 |
|---|---|
%a | 일요일부터 토요일까지의 약식 텍스트 표현 |
%A | 일요일부터 토요일까지의 전체 텍스트 표현 |
%d | 월의 두 자리 일 (앞에 0이 있음) 01-31 |
%e | 한 자리 앞에 공백이있는 날짜. Windows에 설명 된대로 구현되지 않았습니다. 자세한 내용은 아래를 참조하십시오. 1에서 31 |
%j | 일, 3 자리 숫자 앞에 0이 001-366 |
%u | ISO-8601 요일 1 (월요일)부터 7 (일요일)까지의 숫자 표현 |
%w | 요일 0 (일요일)부터 6 (토요일)까지의 숫자 표현 |
주 형식
| 형식 | 설명 |
|---|---|
%U | 첫 번째 일요일을 첫 번째 주 13으로 시작하여 해당 연도의 주 번호 (해당 연도의 13 번째 주) |
%V | ISO-8601 : 1988 해당 연도의 첫 번째 주부터 시작하여 최소 4 개의 주중으로 시작하며 월요일은 01부터 53까지의 주 시작입니다 (53은 겹치는 주를 나타냄). |
%W | 첫 번째 월요일을 첫 번째 주 46으로 시작하는 한 해의주의 숫자 표시 (월요일로 시작하는 연도의 46 번째 주) |
월 형식
| 형식 | 설명 |
|---|---|
%b | Jan에서 Dec까지의 로케일을 기반으로하는 축약 된 월 이름 |
%B | 1 월부터 12 월까지의 로케일을 기반으로 한 전체 월 이름 |
%h | 로케일 (%b의 별칭)을 기반으로하는 축약 된 월 이름입니다. Jan-Dec |
%m | 01 (1월)부터 12 (12월)까지의 두 자리 숫자 표현 |
년 형식
| 형식 | 설명 |
|---|---|
%C | 20 세기의 세기를 나타내는 두 자리 숫자 (연도를 100으로 나눈 값, 정수로 잘림) 19 |
%g | ISO-8601 : 1988 표준에 따른 연도의 두 자리 표현 (%V 참조) 예 : 2009 년 1 월 6 일 주를 나타내는 09 |
%G | %g의 전체 4 자리 버전 예 : 2008 년 1 월 3 일 주 |
%y | 연도의 두 자리 표현 예 : 2009는 09, 1979는 79 |
%Y | 연도를 4 자리로 표시 예 : 2038 |
시간 형식
| 형식 | 설명 |
|---|---|
%H | 00부터 23까지 24 시간 형식의 두 자리 시간 표시 |
%k | 시간 (24 시간 형식), 0부터 23까지의 한 자리 앞에 공백이 있음 |
%I | 01에서 12까지의 12 시간 형식으로 시간을 두 자리로 표현 |
%l (소문자 'L') | 12 시간 형식의 시간, 1에서 12까지의 한 자리 앞에 공백이 있음 |
%M | 00부터 59까지의 두 자리 숫자 표현 |
%p | 대문자 'AM'또는 'PM'은 주어진 시간을 기준으로합니다. 예 : AM 00:31, PM 22:23 |
P | 주어진 시간을 기준으로 소문자 'am'또는 'pm' 예 : 오전 00:31, pm 22:23 |
%r | %I, %M, %S, %p, 형식과 동일합니다. 예 : 21:34:17의 경우 PM 09:34:17 |
%R | %H, %M과 동일합니다. 예 : 오전 12:35에는 00:35, 오후 4:44에는 16:44 |
%S | 00에서 59까지의 두 번째 숫자 표현 |
%T | %H, %M, %S와 동일. 예 : 오후 09:34:17의 경우 21:34:17 |
%X | 날짜없이 로케일을 기반으로하는 선호 시간 표시 예 : 03:59:16 또는 15:59:16 |
%z | 표준 시간대 오프셋. Windows에 설명된대로 구현되지 않았습니다. 자세한 내용은 아래를 참조하십시오. 예 : 미국 동부 표준시의 경우 -0500 |
%Z | 표준 시간대 약어. Windows에 설명 된대로 구현되지 않았습니다. 자세한 내용은 아래를 참조하십시오. 예 : 동부 표준시의 경우 EST |
시간 및 날짜 스탬프 형식
| 형식 | 설명 |
|---|---|
%c | 로케일에 따른 선호 날짜 및 시간 스탬프 예 : 2009 년 2 월 5 일 화요일 오전 12:45:10에 2009 년 2 월 5 일 00:45:10 |
%D | "% m / % d / % y"와 동일 예 : 2009 년 2 월 5 일은 02/05/09 |
%F | "% Y- % m- % d"와 동일 (일반적으로 데이터베이스 날짜 스탬프에 사용됨) 예 : 2009 년 2 월 5 일의 2009-02-05 |
%s | Unix Epoch 타임 스탬프 (time () 함수와 동일) 예 : 1979 년 9 월 10 일 오전 08:40:00의 경우 305815200 |
%x | 시간없이 로케일을 기반으로하는 선호 날짜 표현 예 : 2009 년 2 월 5 일은 02/05/09 |
기타 형식
| 형식 | 설명 |
|---|---|
%n | 개행 문자 ( "\ n") |
%t | 탭 문자 ( "\ t") |
%% | 리터럴 백분율 문자 ( "%") |
주의할 사항
ISO-9899 는 1999와 달리 Sun Solaris는 일요일을 1로 시작합니다.
따라서 %u가 이 설명서에 설명된대로 작동하지 않을 수 있습니다.
Windows 제한 사항
%e 수정자는 이 함수의 Windows 구현에서 지원되지 않습니다.
이 값을 얻기 위해 %#d 수정자를 대신 사용할 수 있습니다.
아래 예제는 크로스 플랫폼 호환 함수를 작성하는 방법을 보여줍니다.
%z 및 %Z 수정자는 모두 오프셋이나 약어 대신 표준 시간대 이름을 반환합니다.
macOS 제한사항
%P 수정자는이 함수의 macOS 구현에서 지원되지 않습니다.
$timestamp
선택적 타임 스탬프 매개 변수는 타임 스탬프가 생략되거나 null 인 경우 기본값이 현재 로컬시간 인 int Unix 타임 스탬프입니다.
즉, 기본값은 time()입니다.
설명
PHP 4 버전부터 제공됩니다.
로케일 설정에 따라 시간 및 / 또는 날짜 형식을 지정합니다.
월 및 요일 이름과 기타 언어 종속 문자열은 setlocale로 설정된 현재 로케일을 따릅니다.
모든 변환 지정자가 C 라이브러리에서 지원되는 것은 아닙니다.
이 경우 PHP의 strftime에서 지원하지 않습니다.
또한 모든 플랫폼이 음수 타임 스탬프를 지원하는 것은 아니므로 날짜 범위는 Unix 시대 이전으로 제한 될 수 있습니다.
이는 %e, %T, %R 및 %D (및 기타) (및 1970 년 1 월 1 일 이전 날짜)가 Windows, 일부 Linux 배포 및 기타 몇 가지 운영 체제에서 작동하지 않음을 의미합니다.
Windows 시스템의 경우 지원되는 변환 지정자에 대한 전체 개요는 MSDN에서 찾을 수 있습니다.
주어진 타임 스탬프 또는 타임 스탬프가 제공되지 않은 경우 현재 현지 시간을 사용하여 형식에 따라 형식이 지정된 문자열을 반환합니다.
월 및 요일 이름과 기타 언어 종속 문자열은 setlocale로 설정된 현재 로케일을 따릅니다.
형식이 비어 있거나 지원되지 않는 변환 지정자가 포함되어 있거나 반환 된 문자열의 길이가 4095보다 큰 경우 함수는 false를 반환합니다.
날짜 / 시간 함수에 대한 모든 호출은 시간대가 유효하지 않은 경우 E_NOTICE를 생성하고 시스템 설정 또는 TZ 환경 변수를 사용하는 경우 E_STRICT 또는 E_WARNING 메시지를 생성합니다. date_default_timezone_set도 참조하십시오.
출력은 기본 C 라이브러리에 따라 다르기 때문에 일부 변환 지정자는 지원되지 않습니다.
Windows에서 알 수 없는 변환 지정자를 제공하면 5개의 E_WARNING 메시지가 생성되고 false가 반환됩니다.
다른 운영 체제에서는 E_WARNING 메시지를 받지 못할 수 있으며 출력에는 변환되지 않은 변환 지정자가 포함될 수 있습니다.
PHP 8.0 부터 $timestamp 에 null을 전달할 수 있습니다.
ISO 8601 : 1988 주 번호를 기반으로하는 %G 및 %V는 번호 체계를 완전히 이해하지 못한 경우 예상치 못한 (올바른) 결과를 제공 할 수 있습니다.
이 매뉴얼 페이지의 %V 예제를 참조하십시오.
예제 1
setlocale(LC_TIME, "C");
echo strftime("%A");
setlocale(LC_TIME, "fi_FI");
echo strftime(" in Finnish is %A,");
setlocale(LC_TIME, "fr_FR");
echo strftime(" in French %A and");
setlocale(LC_TIME, "de_DE");
echo strftime(" in German %A.\n");
예제 2
/* December 2002 / January 2003
ISOWk M Tu W Thu F Sa Su
----- ----------------------------
51 16 17 18 19 20 21 22
52 23 24 25 26 27 28 29
1 30 31 1 2 3 4 5
2 6 7 8 9 10 11 12
3 13 14 15 16 17 18 19 */
// Outputs: 12/28/2002 - %V,%G,%Y = 52,2002,2002
echo "12/28/2002 - %V,%G,%Y = " . strftime("%V,%G,%Y", strtotime("12/28/2002")) . "\n";
// Outputs: 12/30/2002 - %V,%G,%Y = 1,2003,2002
echo "12/30/2002 - %V,%G,%Y = " . strftime("%V,%G,%Y", strtotime("12/30/2002")) . "\n";
// Outputs: 1/3/2003 - %V,%G,%Y = 1,2003,2003
echo "1/3/2003 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/3/2003")) . "\n";
// Outputs: 1/10/2003 - %V,%G,%Y = 2,2003,2003
echo "1/10/2003 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/10/2003")) . "\n";
/* December 2004 / January 2005
ISOWk M Tu W Thu F Sa Su
----- ----------------------------
51 13 14 15 16 17 18 19
52 20 21 22 23 24 25 26
53 27 28 29 30 31 1 2
1 3 4 5 6 7 8 9
2 10 11 12 13 14 15 16 */
// Outputs: 12/23/2004 - %V,%G,%Y = 52,2004,2004
echo "12/23/2004 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("12/23/2004")) . "\n";
// Outputs: 12/31/2004 - %V,%G,%Y = 53,2004,2004
echo "12/31/2004 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("12/31/2004")) . "\n";
// Outputs: 1/2/2005 - %V,%G,%Y = 53,2004,2005
echo "1/2/2005 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/2/2005")) . "\n";
// Outputs: 1/3/2005 - %V,%G,%Y = 1,2005,2005
echo "1/3/2005 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/3/2005")) . "\n";
예제 3
// Jan 1: results in: '%e%1%' (%%, e, %%, %e, %%)
$format = '%%e%%%e%%';
// Check for Windows to find and replace the %e
// modifier correctly
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
$format = preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
}
echo strftime($format);
예제 4
// Describe the formats.
$strftimeFormats = array(
'A' => 'A full textual representation of the day',
'B' => 'Full month name, based on the locale',
'C' => 'Two digit representation of the century (year divided by 100, truncated to an integer)',
'D' => 'Same as "%m/%d/%y"',
'E' => '',
'F' => 'Same as "%Y-%m-%d"',
'G' => 'The full four-digit version of %g',
'H' => 'Two digit representation of the hour in 24-hour format',
'I' => 'Two digit representation of the hour in 12-hour format',
'J' => '',
'K' => '',
'L' => '',
'M' => 'Two digit representation of the minute',
'N' => '',
'O' => '',
'P' => 'lower-case "am" or "pm" based on the given time',
'Q' => '',
'R' => 'Same as "%H:%M"',
'S' => 'Two digit representation of the second',
'T' => 'Same as "%H:%M:%S"',
'U' => 'Week number of the given year, starting with the first Sunday as the first week',
'V' => 'ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week',
'W' => 'A numeric representation of the week of the year, starting with the first Monday as the first week',
'X' => 'Preferred time representation based on locale, without the date',
'Y' => 'Four digit representation for the year',
'Z' => 'The time zone offset/abbreviation option NOT given by %z (depends on operating system)',
'a' => 'An abbreviated textual representation of the day',
'b' => 'Abbreviated month name, based on the locale',
'c' => 'Preferred date and time stamp based on local',
'd' => 'Two-digit day of the month (with leading zeros)',
'e' => 'Day of the month, with a space preceding single digits',
'f' => '',
'g' => 'Two digit representation of the year going by ISO-8601:1988 standards (see %V)',
'h' => 'Abbreviated month name, based on the locale (an alias of %b)',
'i' => '',
'j' => 'Day of the year, 3 digits with leading zeros',
'k' => 'Hour in 24-hour format, with a space preceding single digits',
'l' => 'Hour in 12-hour format, with a space preceding single digits',
'm' => 'Two digit representation of the month',
'n' => 'A newline character ("\n")',
'o' => '',
'p' => 'UPPER-CASE "AM" or "PM" based on the given time',
'q' => '',
'r' => 'Same as "%I:%M:%S %p"',
's' => 'Unix Epoch Time timestamp',
't' => 'A Tab character ("\t")',
'u' => 'ISO-8601 numeric representation of the day of the week',
'v' => '',
'w' => 'Numeric representation of the day of the week',
'x' => 'Preferred date representation based on locale, without the time',
'y' => 'Two digit representation of the year',
'z' => 'Either the time zone offset from UTC or the abbreviation (depends on operating system)',
'%' => 'A literal percentage character ("%")',
);
// Results.
$strftimeValues = array();
// Evaluate the formats whilst suppressing any errors.
foreach($strftimeFormats as $format => $description){
if (False !== ($value = @strftime("%{$format}"))){
$strftimeValues[$format] = $value;
}
}
// Find the longest value.
$maxValueLength = 2 + max(array_map('strlen', $strftimeValues));
// Report known formats.
foreach($strftimeValues as $format => $value){
echo "Known format : '{$format}' = ", str_pad("'{$value}'", $maxValueLength), " ( {$strftimeFormats[$format]} )\n";
}
// Report unknown formats.
foreach(array_diff_key($strftimeFormats, $strftimeValues) as $format => $description){
echo "Unknown format : '{$format}' ", str_pad(' ', $maxValueLength), ($description ? " ( {$description} )" : ''), "\n";
}
결과 4
Known format : 'A' = 'Friday' ( A full textual representation of the day )
Known format : 'B' = 'December' ( Full month name, based on the locale )
Known format : 'H' = '11' ( Two digit representation of the hour in 24-hour format )
Known format : 'I' = '11' ( Two digit representation of the hour in 12-hour format )
Known format : 'M' = '24' ( Two digit representation of the minute )
Known format : 'S' = '44' ( Two digit representation of the second )
Known format : 'U' = '48' ( Week number of the given year, starting with the first Sunday as the first week )
Known format : 'W' = '48' ( A numeric representation of the week of the year, starting with the first Monday as the first week )
Known format : 'X' = '11:24:44' ( Preferred time representation based on locale, without the date )
Known format : 'Y' = '2010' ( Four digit representation for the year )
Known format : 'Z' = 'GMT Standard Time' ( The time zone offset/abbreviation option NOT given by %z (depends on operating system) )
Known format : 'a' = 'Fri' ( An abbreviated textual representation of the day )
Known format : 'b' = 'Dec' ( Abbreviated month name, based on the locale )
Known format : 'c' = '12/03/10 11:24:44' ( Preferred date and time stamp based on local )
Known format : 'd' = '03' ( Two-digit day of the month (with leading zeros) )
Known format : 'j' = '337' ( Day of the year, 3 digits with leading zeros )
Known format : 'm' = '12' ( Two digit representation of the month )
Known format : 'p' = 'AM' ( UPPER-CASE "AM" or "PM" based on the given time )
Known format : 'w' = '5' ( Numeric representation of the day of the week )
Known format : 'x' = '12/03/10' ( Preferred date representation based on locale, without the time )
Known format : 'y' = '10' ( Two digit representation of the year )
Known format : 'z' = 'GMT Standard Time' ( Either the time zone offset from UTC or the abbreviation (depends on operating system) )
Known format : '%' = '%' ( A literal percentage character ("%") )
Unknown format : 'C' ( Two digit representation of the century (year divided by 100, truncated to an integer) )
Unknown format : 'D' ( Same as "%m/%d/%y" )
Unknown format : 'E'
Unknown format : 'F' ( Same as "%Y-%m-%d" )
Unknown format : 'G' ( The full four-digit version of %g )
Unknown format : 'J'
Unknown format : 'K'
Unknown format : 'L'
Unknown format : 'N'
Unknown format : 'O'
Unknown format : 'P' ( lower-case "am" or "pm" based on the given time )
Unknown format : 'Q'
Unknown format : 'R' ( Same as "%H:%M" )
Unknown format : 'T' ( Same as "%H:%M:%S" )
Unknown format : 'V' ( ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week )
Unknown format : 'e' ( Day of the month, with a space preceding single digits )
Unknown format : 'f'
Unknown format : 'g' ( Two digit representation of the year going by ISO-8601:1988 standards (see %V) )
Unknown format : 'h' ( Abbreviated month name, based on the locale (an alias of %b) )
Unknown format : 'i'
Unknown format : 'k' ( Hour in 24-hour format, with a space preceding single digits )
Unknown format : 'l' ( Hour in 12-hour format, with a space preceding single digits )
Unknown format : 'n' ( A newline character ("\n") )
Unknown format : 'o'
Unknown format : 'q'
Unknown format : 'r' ( Same as "%I:%M:%S %p" )
Unknown format : 's' ( Unix Epoch Time timestamp )
Unknown format : 't' ( A Tab character ("\t") )
Unknown format : 'u' ( ISO-8601 numeric representation of the day of the week )
Unknown format : 'v'
참고
setlocale(LC_TIME, "C");
echo strftime("%A");
setlocale(LC_TIME, "fi_FI");
echo strftime(" in Finnish is %A,");
setlocale(LC_TIME, "fr_FR");
echo strftime(" in French %A and");
setlocale(LC_TIME, "de_DE");
echo strftime(" in German %A.\n");/* December 2002 / January 2003
ISOWk M Tu W Thu F Sa Su
----- ----------------------------
51 16 17 18 19 20 21 22
52 23 24 25 26 27 28 29
1 30 31 1 2 3 4 5
2 6 7 8 9 10 11 12
3 13 14 15 16 17 18 19 */
// Outputs: 12/28/2002 - %V,%G,%Y = 52,2002,2002
echo "12/28/2002 - %V,%G,%Y = " . strftime("%V,%G,%Y", strtotime("12/28/2002")) . "\n";
// Outputs: 12/30/2002 - %V,%G,%Y = 1,2003,2002
echo "12/30/2002 - %V,%G,%Y = " . strftime("%V,%G,%Y", strtotime("12/30/2002")) . "\n";
// Outputs: 1/3/2003 - %V,%G,%Y = 1,2003,2003
echo "1/3/2003 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/3/2003")) . "\n";
// Outputs: 1/10/2003 - %V,%G,%Y = 2,2003,2003
echo "1/10/2003 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/10/2003")) . "\n";
/* December 2004 / January 2005
ISOWk M Tu W Thu F Sa Su
----- ----------------------------
51 13 14 15 16 17 18 19
52 20 21 22 23 24 25 26
53 27 28 29 30 31 1 2
1 3 4 5 6 7 8 9
2 10 11 12 13 14 15 16 */
// Outputs: 12/23/2004 - %V,%G,%Y = 52,2004,2004
echo "12/23/2004 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("12/23/2004")) . "\n";
// Outputs: 12/31/2004 - %V,%G,%Y = 53,2004,2004
echo "12/31/2004 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("12/31/2004")) . "\n";
// Outputs: 1/2/2005 - %V,%G,%Y = 53,2004,2005
echo "1/2/2005 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/2/2005")) . "\n";
// Outputs: 1/3/2005 - %V,%G,%Y = 1,2005,2005
echo "1/3/2005 - %V,%G,%Y = " . strftime("%V,%G,%Y",strtotime("1/3/2005")) . "\n";
예제 3
// Jan 1: results in: '%e%1%' (%%, e, %%, %e, %%)
$format = '%%e%%%e%%';
// Check for Windows to find and replace the %e
// modifier correctly
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
$format = preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
}
echo strftime($format);
예제 4
// Describe the formats.
$strftimeFormats = array(
'A' => 'A full textual representation of the day',
'B' => 'Full month name, based on the locale',
'C' => 'Two digit representation of the century (year divided by 100, truncated to an integer)',
'D' => 'Same as "%m/%d/%y"',
'E' => '',
'F' => 'Same as "%Y-%m-%d"',
'G' => 'The full four-digit version of %g',
'H' => 'Two digit representation of the hour in 24-hour format',
'I' => 'Two digit representation of the hour in 12-hour format',
'J' => '',
'K' => '',
'L' => '',
'M' => 'Two digit representation of the minute',
'N' => '',
'O' => '',
'P' => 'lower-case "am" or "pm" based on the given time',
'Q' => '',
'R' => 'Same as "%H:%M"',
'S' => 'Two digit representation of the second',
'T' => 'Same as "%H:%M:%S"',
'U' => 'Week number of the given year, starting with the first Sunday as the first week',
'V' => 'ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week',
'W' => 'A numeric representation of the week of the year, starting with the first Monday as the first week',
'X' => 'Preferred time representation based on locale, without the date',
'Y' => 'Four digit representation for the year',
'Z' => 'The time zone offset/abbreviation option NOT given by %z (depends on operating system)',
'a' => 'An abbreviated textual representation of the day',
'b' => 'Abbreviated month name, based on the locale',
'c' => 'Preferred date and time stamp based on local',
'd' => 'Two-digit day of the month (with leading zeros)',
'e' => 'Day of the month, with a space preceding single digits',
'f' => '',
'g' => 'Two digit representation of the year going by ISO-8601:1988 standards (see %V)',
'h' => 'Abbreviated month name, based on the locale (an alias of %b)',
'i' => '',
'j' => 'Day of the year, 3 digits with leading zeros',
'k' => 'Hour in 24-hour format, with a space preceding single digits',
'l' => 'Hour in 12-hour format, with a space preceding single digits',
'm' => 'Two digit representation of the month',
'n' => 'A newline character ("\n")',
'o' => '',
'p' => 'UPPER-CASE "AM" or "PM" based on the given time',
'q' => '',
'r' => 'Same as "%I:%M:%S %p"',
's' => 'Unix Epoch Time timestamp',
't' => 'A Tab character ("\t")',
'u' => 'ISO-8601 numeric representation of the day of the week',
'v' => '',
'w' => 'Numeric representation of the day of the week',
'x' => 'Preferred date representation based on locale, without the time',
'y' => 'Two digit representation of the year',
'z' => 'Either the time zone offset from UTC or the abbreviation (depends on operating system)',
'%' => 'A literal percentage character ("%")',
);
// Results.
$strftimeValues = array();
// Evaluate the formats whilst suppressing any errors.
foreach($strftimeFormats as $format => $description){
if (False !== ($value = @strftime("%{$format}"))){
$strftimeValues[$format] = $value;
}
}
// Find the longest value.
$maxValueLength = 2 + max(array_map('strlen', $strftimeValues));
// Report known formats.
foreach($strftimeValues as $format => $value){
echo "Known format : '{$format}' = ", str_pad("'{$value}'", $maxValueLength), " ( {$strftimeFormats[$format]} )\n";
}
// Report unknown formats.
foreach(array_diff_key($strftimeFormats, $strftimeValues) as $format => $description){
echo "Unknown format : '{$format}' ", str_pad(' ', $maxValueLength), ($description ? " ( {$description} )" : ''), "\n";
}
결과 4
Known format : 'A' = 'Friday' ( A full textual representation of the day )
Known format : 'B' = 'December' ( Full month name, based on the locale )
Known format : 'H' = '11' ( Two digit representation of the hour in 24-hour format )
Known format : 'I' = '11' ( Two digit representation of the hour in 12-hour format )
Known format : 'M' = '24' ( Two digit representation of the minute )
Known format : 'S' = '44' ( Two digit representation of the second )
Known format : 'U' = '48' ( Week number of the given year, starting with the first Sunday as the first week )
Known format : 'W' = '48' ( A numeric representation of the week of the year, starting with the first Monday as the first week )
Known format : 'X' = '11:24:44' ( Preferred time representation based on locale, without the date )
Known format : 'Y' = '2010' ( Four digit representation for the year )
Known format : 'Z' = 'GMT Standard Time' ( The time zone offset/abbreviation option NOT given by %z (depends on operating system) )
Known format : 'a' = 'Fri' ( An abbreviated textual representation of the day )
Known format : 'b' = 'Dec' ( Abbreviated month name, based on the locale )
Known format : 'c' = '12/03/10 11:24:44' ( Preferred date and time stamp based on local )
Known format : 'd' = '03' ( Two-digit day of the month (with leading zeros) )
Known format : 'j' = '337' ( Day of the year, 3 digits with leading zeros )
Known format : 'm' = '12' ( Two digit representation of the month )
Known format : 'p' = 'AM' ( UPPER-CASE "AM" or "PM" based on the given time )
Known format : 'w' = '5' ( Numeric representation of the day of the week )
Known format : 'x' = '12/03/10' ( Preferred date representation based on locale, without the time )
Known format : 'y' = '10' ( Two digit representation of the year )
Known format : 'z' = 'GMT Standard Time' ( Either the time zone offset from UTC or the abbreviation (depends on operating system) )
Known format : '%' = '%' ( A literal percentage character ("%") )
Unknown format : 'C' ( Two digit representation of the century (year divided by 100, truncated to an integer) )
Unknown format : 'D' ( Same as "%m/%d/%y" )
Unknown format : 'E'
Unknown format : 'F' ( Same as "%Y-%m-%d" )
Unknown format : 'G' ( The full four-digit version of %g )
Unknown format : 'J'
Unknown format : 'K'
Unknown format : 'L'
Unknown format : 'N'
Unknown format : 'O'
Unknown format : 'P' ( lower-case "am" or "pm" based on the given time )
Unknown format : 'Q'
Unknown format : 'R' ( Same as "%H:%M" )
Unknown format : 'T' ( Same as "%H:%M:%S" )
Unknown format : 'V' ( ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week )
Unknown format : 'e' ( Day of the month, with a space preceding single digits )
Unknown format : 'f'
Unknown format : 'g' ( Two digit representation of the year going by ISO-8601:1988 standards (see %V) )
Unknown format : 'h' ( Abbreviated month name, based on the locale (an alias of %b) )
Unknown format : 'i'
Unknown format : 'k' ( Hour in 24-hour format, with a space preceding single digits )
Unknown format : 'l' ( Hour in 12-hour format, with a space preceding single digits )
Unknown format : 'n' ( A newline character ("\n") )
Unknown format : 'o'
Unknown format : 'q'
Unknown format : 'r' ( Same as "%I:%M:%S %p" )
Unknown format : 's' ( Unix Epoch Time timestamp )
Unknown format : 't' ( A Tab character ("\t") )
Unknown format : 'u' ( ISO-8601 numeric representation of the day of the week )
Unknown format : 'v'
참고
// Jan 1: results in: '%e%1%' (%%, e, %%, %e, %%)
$format = '%%e%%%e%%';
// Check for Windows to find and replace the %e
// modifier correctly
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
$format = preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
}
echo strftime($format);// Describe the formats.
$strftimeFormats = array(
'A' => 'A full textual representation of the day',
'B' => 'Full month name, based on the locale',
'C' => 'Two digit representation of the century (year divided by 100, truncated to an integer)',
'D' => 'Same as "%m/%d/%y"',
'E' => '',
'F' => 'Same as "%Y-%m-%d"',
'G' => 'The full four-digit version of %g',
'H' => 'Two digit representation of the hour in 24-hour format',
'I' => 'Two digit representation of the hour in 12-hour format',
'J' => '',
'K' => '',
'L' => '',
'M' => 'Two digit representation of the minute',
'N' => '',
'O' => '',
'P' => 'lower-case "am" or "pm" based on the given time',
'Q' => '',
'R' => 'Same as "%H:%M"',
'S' => 'Two digit representation of the second',
'T' => 'Same as "%H:%M:%S"',
'U' => 'Week number of the given year, starting with the first Sunday as the first week',
'V' => 'ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week',
'W' => 'A numeric representation of the week of the year, starting with the first Monday as the first week',
'X' => 'Preferred time representation based on locale, without the date',
'Y' => 'Four digit representation for the year',
'Z' => 'The time zone offset/abbreviation option NOT given by %z (depends on operating system)',
'a' => 'An abbreviated textual representation of the day',
'b' => 'Abbreviated month name, based on the locale',
'c' => 'Preferred date and time stamp based on local',
'd' => 'Two-digit day of the month (with leading zeros)',
'e' => 'Day of the month, with a space preceding single digits',
'f' => '',
'g' => 'Two digit representation of the year going by ISO-8601:1988 standards (see %V)',
'h' => 'Abbreviated month name, based on the locale (an alias of %b)',
'i' => '',
'j' => 'Day of the year, 3 digits with leading zeros',
'k' => 'Hour in 24-hour format, with a space preceding single digits',
'l' => 'Hour in 12-hour format, with a space preceding single digits',
'm' => 'Two digit representation of the month',
'n' => 'A newline character ("\n")',
'o' => '',
'p' => 'UPPER-CASE "AM" or "PM" based on the given time',
'q' => '',
'r' => 'Same as "%I:%M:%S %p"',
's' => 'Unix Epoch Time timestamp',
't' => 'A Tab character ("\t")',
'u' => 'ISO-8601 numeric representation of the day of the week',
'v' => '',
'w' => 'Numeric representation of the day of the week',
'x' => 'Preferred date representation based on locale, without the time',
'y' => 'Two digit representation of the year',
'z' => 'Either the time zone offset from UTC or the abbreviation (depends on operating system)',
'%' => 'A literal percentage character ("%")',
);
// Results.
$strftimeValues = array();
// Evaluate the formats whilst suppressing any errors.
foreach($strftimeFormats as $format => $description){
if (False !== ($value = @strftime("%{$format}"))){
$strftimeValues[$format] = $value;
}
}
// Find the longest value.
$maxValueLength = 2 + max(array_map('strlen', $strftimeValues));
// Report known formats.
foreach($strftimeValues as $format => $value){
echo "Known format : '{$format}' = ", str_pad("'{$value}'", $maxValueLength), " ( {$strftimeFormats[$format]} )\n";
}
// Report unknown formats.
foreach(array_diff_key($strftimeFormats, $strftimeValues) as $format => $description){
echo "Unknown format : '{$format}' ", str_pad(' ', $maxValueLength), ($description ? " ( {$description} )" : ''), "\n";
}결과 4
Known format : 'A' = 'Friday' ( A full textual representation of the day )
Known format : 'B' = 'December' ( Full month name, based on the locale )
Known format : 'H' = '11' ( Two digit representation of the hour in 24-hour format )
Known format : 'I' = '11' ( Two digit representation of the hour in 12-hour format )
Known format : 'M' = '24' ( Two digit representation of the minute )
Known format : 'S' = '44' ( Two digit representation of the second )
Known format : 'U' = '48' ( Week number of the given year, starting with the first Sunday as the first week )
Known format : 'W' = '48' ( A numeric representation of the week of the year, starting with the first Monday as the first week )
Known format : 'X' = '11:24:44' ( Preferred time representation based on locale, without the date )
Known format : 'Y' = '2010' ( Four digit representation for the year )
Known format : 'Z' = 'GMT Standard Time' ( The time zone offset/abbreviation option NOT given by %z (depends on operating system) )
Known format : 'a' = 'Fri' ( An abbreviated textual representation of the day )
Known format : 'b' = 'Dec' ( Abbreviated month name, based on the locale )
Known format : 'c' = '12/03/10 11:24:44' ( Preferred date and time stamp based on local )
Known format : 'd' = '03' ( Two-digit day of the month (with leading zeros) )
Known format : 'j' = '337' ( Day of the year, 3 digits with leading zeros )
Known format : 'm' = '12' ( Two digit representation of the month )
Known format : 'p' = 'AM' ( UPPER-CASE "AM" or "PM" based on the given time )
Known format : 'w' = '5' ( Numeric representation of the day of the week )
Known format : 'x' = '12/03/10' ( Preferred date representation based on locale, without the time )
Known format : 'y' = '10' ( Two digit representation of the year )
Known format : 'z' = 'GMT Standard Time' ( Either the time zone offset from UTC or the abbreviation (depends on operating system) )
Known format : '%' = '%' ( A literal percentage character ("%") )
Unknown format : 'C' ( Two digit representation of the century (year divided by 100, truncated to an integer) )
Unknown format : 'D' ( Same as "%m/%d/%y" )
Unknown format : 'E'
Unknown format : 'F' ( Same as "%Y-%m-%d" )
Unknown format : 'G' ( The full four-digit version of %g )
Unknown format : 'J'
Unknown format : 'K'
Unknown format : 'L'
Unknown format : 'N'
Unknown format : 'O'
Unknown format : 'P' ( lower-case "am" or "pm" based on the given time )
Unknown format : 'Q'
Unknown format : 'R' ( Same as "%H:%M" )
Unknown format : 'T' ( Same as "%H:%M:%S" )
Unknown format : 'V' ( ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week )
Unknown format : 'e' ( Day of the month, with a space preceding single digits )
Unknown format : 'f'
Unknown format : 'g' ( Two digit representation of the year going by ISO-8601:1988 standards (see %V) )
Unknown format : 'h' ( Abbreviated month name, based on the locale (an alias of %b) )
Unknown format : 'i'
Unknown format : 'k' ( Hour in 24-hour format, with a space preceding single digits )
Unknown format : 'l' ( Hour in 12-hour format, with a space preceding single digits )
Unknown format : 'n' ( A newline character ("\n") )
Unknown format : 'o'
Unknown format : 'q'
Unknown format : 'r' ( Same as "%I:%M:%S %p" )
Unknown format : 's' ( Unix Epoch Time timestamp )
Unknown format : 't' ( A Tab character ("\t") )
Unknown format : 'u' ( ISO-8601 numeric representation of the day of the week )
Unknown format : 'v'
참고
Known format : 'A' = 'Friday' ( A full textual representation of the day )
Known format : 'B' = 'December' ( Full month name, based on the locale )
Known format : 'H' = '11' ( Two digit representation of the hour in 24-hour format )
Known format : 'I' = '11' ( Two digit representation of the hour in 12-hour format )
Known format : 'M' = '24' ( Two digit representation of the minute )
Known format : 'S' = '44' ( Two digit representation of the second )
Known format : 'U' = '48' ( Week number of the given year, starting with the first Sunday as the first week )
Known format : 'W' = '48' ( A numeric representation of the week of the year, starting with the first Monday as the first week )
Known format : 'X' = '11:24:44' ( Preferred time representation based on locale, without the date )
Known format : 'Y' = '2010' ( Four digit representation for the year )
Known format : 'Z' = 'GMT Standard Time' ( The time zone offset/abbreviation option NOT given by %z (depends on operating system) )
Known format : 'a' = 'Fri' ( An abbreviated textual representation of the day )
Known format : 'b' = 'Dec' ( Abbreviated month name, based on the locale )
Known format : 'c' = '12/03/10 11:24:44' ( Preferred date and time stamp based on local )
Known format : 'd' = '03' ( Two-digit day of the month (with leading zeros) )
Known format : 'j' = '337' ( Day of the year, 3 digits with leading zeros )
Known format : 'm' = '12' ( Two digit representation of the month )
Known format : 'p' = 'AM' ( UPPER-CASE "AM" or "PM" based on the given time )
Known format : 'w' = '5' ( Numeric representation of the day of the week )
Known format : 'x' = '12/03/10' ( Preferred date representation based on locale, without the time )
Known format : 'y' = '10' ( Two digit representation of the year )
Known format : 'z' = 'GMT Standard Time' ( Either the time zone offset from UTC or the abbreviation (depends on operating system) )
Known format : '%' = '%' ( A literal percentage character ("%") )
Unknown format : 'C' ( Two digit representation of the century (year divided by 100, truncated to an integer) )
Unknown format : 'D' ( Same as "%m/%d/%y" )
Unknown format : 'E'
Unknown format : 'F' ( Same as "%Y-%m-%d" )
Unknown format : 'G' ( The full four-digit version of %g )
Unknown format : 'J'
Unknown format : 'K'
Unknown format : 'L'
Unknown format : 'N'
Unknown format : 'O'
Unknown format : 'P' ( lower-case "am" or "pm" based on the given time )
Unknown format : 'Q'
Unknown format : 'R' ( Same as "%H:%M" )
Unknown format : 'T' ( Same as "%H:%M:%S" )
Unknown format : 'V' ( ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week )
Unknown format : 'e' ( Day of the month, with a space preceding single digits )
Unknown format : 'f'
Unknown format : 'g' ( Two digit representation of the year going by ISO-8601:1988 standards (see %V) )
Unknown format : 'h' ( Abbreviated month name, based on the locale (an alias of %b) )
Unknown format : 'i'
Unknown format : 'k' ( Hour in 24-hour format, with a space preceding single digits )
Unknown format : 'l' ( Hour in 12-hour format, with a space preceding single digits )
Unknown format : 'n' ( A newline character ("\n") )
Unknown format : 'o'
Unknown format : 'q'
Unknown format : 'r' ( Same as "%I:%M:%S %p" )
Unknown format : 's' ( Unix Epoch Time timestamp )
Unknown format : 't' ( A Tab character ("\t") )
Unknown format : 'u' ( ISO-8601 numeric representation of the day of the week )
Unknown format : 'v'https://phpman.ml/strftime
https://www.php.net/manual/en/function.strftime.php
관련 함수
setlocale
mktime
strptime
gmstrftime
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