date_timezone_set
A quick note about DATE_RSS and daylight savings...
DATE_RSS will return the timezone that your server is in as part of the format, which is normally correct when formatting a date for an RSS feed (RFC-822).
However, if you're in the UK and it's the summer, your timezone is set as "BST". This is not actually a valid RFC-822 timezone, thereby rendering DATE_RSS a bit useless for six months of the year.
The valid extension would actually be GMT. You should therefore adjust the time back by 1 hour and substitute the BST for GMT.
date
(PHP 4, PHP 5)
date — Dar formato a una hora/fecha local
Descripción
string date
( string $formato
[, int $marca_de_tiempo
] )
Devuelve una cadena con formato de acuerdo a la cadena de formato dada usando el entero marca_de_tiempo entregado o la hora actual si no se da una marca de tiempo. En otras palabras, marca_de_tiempo es opcional y su valor predeterminado es el valor de time().
Lista de parámetros
- formato
-
El formato de la fecha de salida tipo string. Vea las opciones de formato más adelante.
Los siguientes caracteres son reconocidos en la cadena del parámetro formato Caracter de formato Descripción Valores de ejemplo devueltos Día --- --- d Día del mes, 2 dígitos con ceros iniciales 01 a 31 D Una representación textual de un día, tres letras Mon a Sun j Día del mes sin ceros iniciales 1 a 31 l ('L' minúscula) Una representación textual completa del día de la semana Sunday a Saturday N Representación numérica ISO-8601 del día de la semana (agregado in PHP 5.1.0) 1 (para Lunes) a 7 (para Domingo) S Sufijo ordinal en inglés del dia del mes, 2 caracteres st, nd, rd o th. Funciona bien con j w Representación numérica del día de la semana 0 (para el Domingo) a 6 (para el Sábado) z El día del año (comenzando en 0) 0 a 365 Semana --- --- W Número de la semana del año ISO-8601, las semanas comienzan en Lunes (agregado en PHP 4.1.0) Ejemplo: 42 (la 42va semana del año) Mes --- --- F Una representación textual completa de un mes, como January o March January a December m Representación numérica de un mes, con ceros iniciales 01 a 12 M Una representación textual corta de un mes, tres letras Jan a Dec n Representación numérica de un mes, sin ceros iniciales 1 a 12 t Número de días en el mes dado 28 a 31 Año --- --- L Indica si es un año bisiesto 1 si es un año bisiesto, 0 de lo contrario. o Número de año ISO-8601. Este es el mismo valor que Y, excepto que si el número de semana ISO (W) pertenece al año previo o siguiente, ese año será usado en su lugar. (agregado en PHP 5.1.0) Ejemplos: 1999 o 2003 Y Una representación numérica completa de un año, 4 dígitos Ejemplos: 1999 o 2003 y Una representación de dos dígitos de un año Ejemplos: 99 o 03 Hora --- --- a Ante meridiano y Post meridiano en minúsculas am o pm A Ante meridiano y Post meridiano en mayúsculas AM o PM B Hora Swatch Internet 000 a 999 g formato de 12-horas de una hora sin ceros iniciales 1 a 12 G formato de 24-horas de una hora sin ceros iniciales 0 a 23 h formato de 12-horas de una hora con ceros iniciales 01 a 12 H formato de 24-horas de una hora con ceros iniciales 00 a 23 i Minutos con ceros iniciales 00 a 59 s Segundos, con ceros iniciales 00 a 59 u Milisegundos (agregado en PHP 5.2.2) Ejemplo: 54321 Zona horaria --- --- e Identificador de zona horaria (agregado en PHP 5.1.0) Ejemplos: UTC, GMT, Atlantic/Azores I (i mayúscula) Indica si la fecha están en hora de ahorro de luz diurna 1 si es Hora de Ahorro de Luz Diurna, 0 de lo contrario. O Diferencia con la hora Greenwich (GMT) en horas Ejemplo: +0200 P Diferencia con la hora Greenwich (GMT) con dos-puntos entre las horas y los minutos (agregada en PHP 5.1.3) Ejemplo: +02:00 T Abreviación de zona horaria Ejemplos: EST, MDT ... Z Desplazamiento de la zona horaria en segundos. El desplazamiento para zonas horarias al oeste de UTC es siempre negativo, y el de aquellas al este de UTC es siempre positivo. -43200 a 50400 Fecha/Hora Completa --- --- c Fecha ISO 8601 (agregada en PHP 5) 2004-02-12T15:19:21+00:00 r Fecha en formato » RFC 2822 Ejemplo: Thu, 21 Dec 2000 16:01:07 +0200 U Segundos desde el Epoch Unix (January 1 1970 00:00:00 GMT) Vea también time() Los caracteres no reconocidos en la cadena de formato serán impresos como son. El formato Z siempre devuelve 0 cuando se usa gmdate().
Note: Dado que esta función solo acepta marcas de tiempo tipo integer, el caracter de formato u sólo es útil cuando se usa la función date_format() con marcas de tiempo creadas con date_create() basadas en el usuario.
- timestamp
-
The optional timestamp parameter 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().
Valores retornados
Devuelve una cadena de fecha con formate. Si es usado un valor no-numérico en marca_de_tiempo , se devuelve FALSE y un error de nivel E_WARNING es emitido.
Errors/Exceptions
Every call to a date/time function will generate a E_NOTICE if the time zone is not valid, and/or a E_STRICT message if using the system settings or the TZ environment variable. See also date_default_timezone_set()
Registro de cambios
| Versión | Descripción |
|---|---|
| 5.1.0 | El rango válido de una marca de tiempo es típicamente de Fri, 13 Dec 1901 20:45:54 GMT a Tue, 19 Jan 2038 03:14:07 GMT. (Estas son las fechas que corresponden a los valores mínimo y máximo para un entero de 32-bits con signo). Sin embargo, antes de PHP 5.1, este rango estaba limitado desde 01-01-1970 a 19-01-2038 en algunos sistemas (p.ej. Windows). |
| 5.1.0 | Now issues the E_STRICT and E_NOTICE time zone errors. |
| 5.1.1 | Existen algunas constantes útiles de formatos estándar de fecha/hora que pueden usarse para especificar el parámetro formato . |
Ejemplos
Example #1 Ejemplos de date()
<?php
// definir la zona horaria predeterminada a usar. Disponible desde PHP 5.1
date_default_timezone_set('UTC');
// Imprime algo como: Monday
echo date("l");
// Imprime algo como: Monday 15th of August 2005 03:12:46 PM
echo date('l dS \of F Y h:i:s A');
// Imprime: July 1, 2000 is on a Saturday
echo "July 1, 2000 is on a " . date("l", mktime(0, 0, 0, 7, 1, 2000));
/* usar las constantes en el parámetro formato */
// imprime algo como: Mon, 15 Aug 2005 15:12:46 UTC
echo date(DATE_RFC822);
// imprime algo como: 2000-07-01T00:00:00+00:00
echo date(DATE_ATOM, mktime(0, 0, 0, 7, 1, 2000));
?>
Puede prevenir que un caracter reconocido en la cadena de formato sea expandido escapándolo con una barra invertida. Si el caracter con una barra invertida es una secuencia especial, puede que necesite escapar también la barra invertida.
Example #2 Escapar caracteres en date()
<?php
// imprime algo como: Wednesday the 15th
echo date("l \\t\h\e jS");
?>
Es posible usar date() y mktime() juntos para encontrar fechas en el futuro o el pasado.
Example #3 Ejemplo de date() y mktime()
<?php
$manyana = mktime(0, 0, 0, date("m") , date("d")+1, date("Y"));
$ultimo_mes = mktime(0, 0, 0, date("m")-1, date("d"), date("Y"));
$siguiente_anyo = mktime(0, 0, 0, date("m"), date("d"), date("Y")+1);
?>
Note: Esto puede ser más confiable que simplemente sumar o restar el número de segundos en un día o mes de una marca de tiempo debido a las horas de ahorro de luz diurna.
Algunos ejemplos de formato de date(). Note que debe escapar cualquier otro caracter, ya que cualquiera que tenga un significado especial producirá resultados indeseados, y otros caracteres pueden recibir un significado en versiones futuras de PHP. Cuando escape caracteres, asegúrese de usar comillas sencillas para evitar que caracteres como \n se conviertan en saltos de línea.
Example #4 Formato de date()
<?php
// Asumiendo que hoy es: March 10th, 2001, 5:16:18 pm
$hoy = date("F j, Y, g:i a"); // March 10, 2001, 5:16 pm
$hoy = date("m.d.y"); // 03.10.01
$hoy = date("j, n, Y"); // 10, 3, 2001
$hoy = date("Ymd"); // 20010310
$hoy = date('h-i-s, j-m-y, it is w Day z '); // 05-16-17, 10-03-01, 1631 1618 6 Fripm01
$hoy = date('\i\t \i\s \t\h\e jS \d\a\y.'); // It is the 10th day.
$hoy = date("D M j G:i:s T Y"); // Sat Mar 10 15:16:08 MST 2001
$hoy = date('H:m:s \m \i\s\ \m\o\n\t\h'); // 17:03:17 m is month
$hoy = date("H:i:s"); // 17:16:17
?>
Para dar formato a fechas en otros idiomas, debe usar las funciones setlocale() y strftime() en lugar de date().
Notes
Note: Para generar una marca de tiempo a partir de una representación tipo cadena de la fecha, es posible usar strtotime(). Adicionalmente, algunas bases de datos tienen funciones para convertir sus formatos de fecha a marcas de tiempo (como la función » UNIX_TIMESTAMP de MySQL).
Tip
La marca de tiempo del comienzo de la petición está disponible en $_SERVER['REQUEST_TIME'] a partir de PHP 5.1.
Ver también
- getlastmod() - Obtiene la hora de la última modificación de la página
- gmdate() - Dar formato a una fecha/hora GMT/UTC
- mktime() - Obtener la marca de tiempo Unix de una fecha
- strftime() - Dar formato a una hora/fecha local de acuerdo a valores de localidad
- time() - Devuelve la marca de tiempo Unix actual
add a note
User Contributed Notesdate
martinjsteven at gmail dot com
11-Jun-2009 11:20
11-Jun-2009 11:20
rez dot eza at gmail dot com
27-May-2009 04:12
27-May-2009 04:12
<?php
//for Indonesian get return today
echo returnDate(date("N"), "day") . ", " . date("j") . " " . returnDate(date("n"), "month") . " " . date("Y");
function returnDate($num, $tipe){
$str;
switch($tipe){
case "month":
$month_name = array("", "Januari", "Februari", "Maret", "April", "Mei", "Juni", "Juli", "Agustus", "September", "Oktober", "November", "Desember");
$str = $month_name[floor($num)];
break;
case "day":
$day_name = array("", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu", "Minggu");
$str = $day_name[floor($num)];
break;
}
return $str;
}
?>
sarmad dot saadi at gmail dot com
24-May-2009 08:52
24-May-2009 08:52
// showing how to detect a leap year
<?php
function is_leapyear($year = 2004) {
$is_leap = date('L', strtotime("$year-1-1"));
return $is_leap;
}
?>
<?php
$answer = is_leapyear(2000);
if($answer) {
echo "2000 is a leap year<BR>";
} else {
echo "2000 is not a leap year.<BR>";
}
/* Use default for the parameter */
$yy="2003";
$answer = is_leapyear(2003);
if($answer) {
echo "$yy is a leap year.<BR>";
} else {
echo "$yy is not a leap year.<BR>";
}
?>
guido dot orellana at gmail dot com
29-Apr-2009 06:55
29-Apr-2009 06:55
Function to obtain last week timestamps.
<?php
function LastWeek(){
$week = date('W');
$year = date('Y');
$lastweek=$week-1;
if ($lastweek==0){
$week = 52;
$year--;
}
$lastweek=sprintf("%02d", $lastweek);
for ($i=1;$i<=7;$i++){
$arrdays[] = strtotime("$year". "W$lastweek"."$i");
}
return $arrdays;
}
$days = LastWeek();
echo "last week between " . date('Ymd000000',$days[0]) . " and " . date('Ymd235959', $days[6]) . "\n";
?>
eduardo at digmotor dot com dot br
21-Apr-2009 08:34
21-Apr-2009 08:34
Thanks to tcasparr at gmail dot com for the great idea (at least for me) ;)
I changed the code a little to replicate the functionality of date_parse_from_format, once I don't have PHP 5.3.0 yet. This might be useful for someone. Hope you don't mind changing your code tcasparr at gmail dot com.
<?php
/*******************************************************
* Simple function to take in a date format and return array of associated
* formats for each date element
*
* @return array
* @param string $strFormat
*
* Example: Y/m/d g:i:s becomes
* Array
* (
* [year] => Y
* [month] => m
* [day] => d
* [hour] => g
* [minute] => i
* [second] => s
* )
*
* This function is needed for PHP < 5.3.0
********************************************************/
function dateParseFromFormat($stFormat, $stData)
{
$aDataRet = array();
$aPieces = split('[:/.\ \-]', $stFormat);
$aDatePart = split('[:/.\ \-]', $stData);
foreach($aPieces as $key=>$chPiece)
{
switch ($chPiece)
{
case 'd':
case 'j':
$aDataRet['day'] = $aDatePart[$key];
break;
case 'F':
case 'M':
case 'm':
case 'n':
$aDataRet['month'] = $aDatePart[$key];
break;
case 'o':
case 'Y':
case 'y':
$aDataRet['year'] = $aDatePart[$key];
break;
case 'g':
case 'G':
case 'h':
case 'H':
$aDataRet['hour'] = $aDatePart[$key];
break;
case 'i':
$aDataRet['minute'] = $aDatePart[$key];
break;
case 's':
$aDataRet['second'] = $aDatePart[$key];
break;
}
}
return $aDataRet;
}
?>
Also, if you need to change the format of dates:
<?php
function changeDateFormat($stDate,$stFormatFrom,$stFormatTo)
{
// When PHP 5.3.0 becomes available to me
//$date = date_parse_from_format($stFormatFrom,$stDate);
//For now I use the function above
$date = dateParseFromFormat($stFormatFrom,$stDate);
return date($stFormatTo,mktime($date['hour'],
$date['minute'],
$date['second'],
$date['month'],
$date['day'],
$date['year']));
}
?>
Anonymous
14-Apr-2009 02:10
14-Apr-2009 02:10
Heads up: The date('W') week number of the year is computed based on Monday, and may not be exactly what you expect. What is "Week 01" of year 2008? This is different from the date('z') day number of the year which is computed from January 1 == day zero.
<?php // RAY_date_W.php
echo "<br/>" . date('W', strtotime("December 28, 2008")); // 52
echo "<br/>" . date('W', strtotime("December 29, 2008")); // 01
echo "<br/>" . date('W', strtotime("January 2, 2009")); // 01
if (!date('z', strtotime("January 1"))) echo "<br/>FALSE"; // FALSE
?>
tcasparr at gmail dot com
13-Apr-2009 05:21
13-Apr-2009 05:21
<?php
/**
* Simple function to take in a date format and return array of associated formats for each date element
* @return array
* @param string $strFormat
*
* Example: Y/m/d g:i:s becomes
* Array
* (
* [year] => Y
* [month] => m
* [day] => d
* [hour] => g
* [minute] => i
* [second] => s
* )
*/
function extract_date_format($strFormat)
{
$format_array = array();
$pieces = split('[:/.\ \-]', $strFormat);
foreach($pieces as $piece)
{
switch ($piece)
{
case 'd':
case 'j':
$format_array['day'] = $piece;
break;
case 'F':
case 'M':
case 'm':
case 'n':
$format_array['month'] = $piece;
break;
case 'o':
case 'Y':
case 'y':
$format_array['year'] = $piece;
break;
case 'g':
case 'G':
case 'h':
case 'H':
$format_array['hour'] = $piece;
break;
case 'i':
$format_array['minute'] = $piece;
break;
case 's':
$format_array['second'] = $piece;
break;
}
}
return $format_array;
}
?>
pierre
24-Feb-2009 10:22
24-Feb-2009 10:22
It seems to me that you can reliably get the week range of a certain numeric week like so:
<?php
// 2009 is the year
// W01 is week number 1
// 1 is the day number (Monday), 7 would be Sunday
strtotime("2009W011");
// Example 1 (These return the days for Week 1 or 2009
Mon_timestamp = strtotime("2009W011");
Tue_timestamp = strtotime("2009W012");
Wed_timestamp = strtotime("2009W013");
Thu_timestamp = strtotime("2009W014");
Fri_timestamp = strtotime("2009W015");
Sat_timestamp = strtotime("2009W016");
Sun_timestamp = strtotime("2009W017");
// Example 2 (more dynamic)
// set the 7 dates of the week
for($i=1; $i<=7; $i++) {
$dates[$i] = strtotime($year.'W'.$week.$i);
}
?>
Just remember you must pad the week number if it's under 10. 1 won't work, it should be 01.
uramihsayibok, gmail, com
21-Jan-2009 02:47
21-Jan-2009 02:47
In a refreshing change, this code snippet is *not* about calculating date differences or anything like that.
<background-story>
I've always preferred date() over strftime() because of what each offers. For example, date has an st/nd/rd for the day number (S) while strftime does not. It also has an unpadded day number (j) that strftime doesn't (%e pads it with a space).
On the other hand, each character in the format string for date() is translated unless you prepend a backslash...
Recently I've wanted to create links with date information in it. Like with "January 21st 2009" each part would be a link (January => /2009/01, 21st => /2009/01/21, 2009 => /2009). date() makes this difficult because the HTML markup gets the treatment as well as the Y/m/d characters. Escaping all of those is ugly, not to mention annoying.
</background-story>
Here's my combination of date's placeholders and strftime's % markers. It's the best solution I could think of (at 5am mind you) but I'm open to suggestions.
Lots of comments because the code is rather tricky.
<?php
/**
* Combines placeholders from date() with the % marker from strftime()
*
* Like strftime, use %% for a literal %.
*
* @see date, strftime
* @param string $format The format of the outputted date string
* @param int $timestamp An integer Unix timestamp that defaults to the current local time
* @return A formatted date string
*/
function strfdate($format, $timestamp = null) {
// look for tokens
if (preg_match_all('/(?<!%)(%%)*%(.)/', $format, $matches)) {
// passing false or null as the timestamp doesn't work so we
// have to generate the default ourselves
if ($timestamp === null) $timestamp = time();
// run each token through date - all at once
// combines them into a "a!b!c!d" list, runs it through date,
// and splits it apart again
$parts = explode("!", date(implode("!", $matches[2]), $timestamp));
// (! should never show up in date() output so this works)
// a second function is used sequentially:
// the Xth time this function is called it will replace the Xth token
// with the corresponding element in $parts (which is passed through as $a)
//
// @param array $a Meant to be $parts as defined above
// @return $a[X] where X is how many times this function has been called
$replace = create_function('$a', 'static $i = 0; return $a[$i++];');
// find each token and get the replacement data from the $replace function
// note how the text being replaced isn't used anywhere: we already know
// what it is as it was used to create the $parts array
$result = preg_replace('/(%*)%./e', '"$1" . $replace($parts)', $format);
// finally "unescape" any %s
$result = str_replace("%%", "%", $result);
return $result;
}
return $format;
}
?>
mrkrackham
18-Nov-2008 07:33
18-Nov-2008 07:33
Just in case anyone else is looking for an easy-to-find equivalent for W3C Datetime or date("c") in a previous version of php, here's one I did. Hope it helps someone.
<?php
function w3cDate($time=NULL)
{
if (empty($time))
$time = time();
$offset = date("O",$time);
return date("Y-m-d\TH:i:s",$time).substr($offset,0,3).":".substr($offset,-2);
}
?>
Examples:
echo w3cDate(); //2008-11-18T12:15:18-07:00
echo w3cDate(mktime(2,3,4,5,6,2007)); //2007-05-06T02:03:04-06:00
sourabhshankar AT gmail DOT com
14-Nov-2008 08:43
14-Nov-2008 08:43
<?php
/*
Find out start and end date of current week.
I am assuming that week starts at sunday and ends at saturday.
so a typical week will look like this: sun,mon,tue,wed,thu,fri,sat
if you find any bug/error, please email me.
*/
//sunday = start of week
$sat = 6; //saturday = end of week
$current_day=date('w');
$days_remaining_until_sat = $sat - $current_day;
$ts_start = strtotime("-$current_day days");
$ts_end = strtotime("+$days_remaining_until_sat days");
echo date('m-d-Y',$ts_start); //start date
echo '<br>';
echo date('m-d-Y',$ts_end); //end date
/*
OUTPUT (m-d-y):
11-09-2008
11-15-2008
*/
?>
Kenneth Kin Lum
02-Oct-2008 10:52
02-Oct-2008 10:52
date(DATE_RFC822) and date(DATE_RFC2822) both work. note that RFC 822 is obsoleted by RFC 2822. The main difference is the year being 08 in RFC 822 and is 2008 in RFC 2822.
To use date(DATE_RFC2822), a short form is date('r').
Anonymous
12-Sep-2008 01:01
12-Sep-2008 01:01
Correct format for a MySQL DATETIME column is
<?php $mysqltime = date ("Y-m-d H:i:s", $phptime); ?>
Cortexd
27-Aug-2008 06:47
27-Aug-2008 06:47
a date function supporting the milliseconds format character
<?php
function udate($format, $utimestamp = null)
{
if (is_null($utimestamp))
$utimestamp = microtime(true);
$timestamp = floor($utimestamp);
$milliseconds = round(($utimestamp - $timestamp) * 1000000);
return date(preg_replace('`(?<!\\\\)u`', $milliseconds, $format), $timestamp);
}
echo udate('H:i:s.u'); // 19:40:56.78128
echo udate('H:i:s.u', 654532123.04546); // 16:28:43.45460
?>
pdubbb1 at gmail dot com
26-Aug-2008 12:32
26-Aug-2008 12:32
here is the simpliest way to get the start and end date of the week;
<?php
$sdate=date('c',strtotime(date('Y')."W".date('W')."0"));
$edate=date('c',strtotime(date('Y')."W".date('W')."7"));
?>
the format is for the string in strtotime is;
2008W200
this stands for year - 2008, constant never changes - W, week number of the year - 20, day of the week - 0 for sunday, 1 for monday, etc....
so 2008W200 stands for the sunday of the 20th week of 2008.
This will only work in php 5 or better
abazaba.ru
14-Aug-2008 10:53
14-Aug-2008 10:53
All novices must be very carefull when working with timestamps as second values.
From first glance it looks like date("Y-m-d H:i:s",TIMESTAMP) will return correct date, based on "how much seconds gone from 1970".
But here is the feature, it'll be corrected time, according to LOCAL timezone.
So if you take a 25200 as timestamp (10 hours),
then on one server you'll get
1970-01-01 08:00:00
and on other server you'll get
1970-01-01 09:00:00
and so on.
Though you could expect 1970-01-01 10:00:00 in all cases, because if 25200 seconds gone from 1970-01-01 00:00:00 it obviously have to be 1970-01-01 10:00:00
I spend today 3 hours to correct scripts which were created with such error by previous programmer, so please, guys, don't make me work like this and remember about conversation to LOCAL time.
phprocks at aol dot com
06-Aug-2008 06:25
06-Aug-2008 06:25
Try this for finding the difference in days between 2 dates/datetimes... take note though, date_parse requires PHP version 5.1.3 or higher.
<?php
/**
* Finds the difference in days between two calendar dates.
*
* @param Date $startDate
* @param Date $endDate
* @return Int
*/
function dateDiff($startDate, $endDate)
{
// Parse dates for conversion
$startArry = date_parse($startDate);
$endArry = date_parse($endDate);
// Convert dates to Julian Days
$start_date = gregoriantojd($startArry["month"], $startArry["day"], $startArry["year"]);
$end_date = gregoriantojd($endArry["month"], $endArry["day"], $endArry["year"]);
// Return difference
return round(($end_date - $start_date), 0);
}
?>
JonathanCross.com
25-Jul-2008 08:22
25-Jul-2008 08:22
<?php
// A demonstration of the new DateTime class for those
// trying to use dates before 1970 or after 2038.
?>
<h2>PHP 2038 date bug demo (php version <?php echo phpversion(); ?>)</h1>
<div style='float:left;margin-right:3em;'>
<h3>OLD Buggy date()</h3>
<?php
$format='F j, Y';
for ( $i = 1900; $i < 2050; $i++) {
$datep = "$i-01-01";
?>
Trying: <?php echo $datep; ?> = <?php echo date($format, strtotime($datep)); ?><br>
<?php
}
?></div>
<div style='float:left;'>
<h3>NEW DateTime Class (v 5.2+)</h3><?php
for ( $i = 1900; $i < 2050; $i++) {
$datep = "$i-01-01";
$date = new DateTime($datep);
?>
Trying: <?php echo $datep; ?> = <?php echo $date->format($format); ?><br>
<?php
}
?></div>
Rob A.
10-Jul-2008 04:38
10-Jul-2008 04:38
Quick function for returning the names of the next 7 days of the week starting with today.
Returns an array that can be formatted to your liking.
<?php
/**
* Returns array of next 7 days starting with today
*
*/
function next_7_days() {
// create array of day names. You can change these to whatever you want
$days = array(
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday',
'Sunday');
$today = date('N');
for ($i=1;$i<$today;$i++) {
// take the first element off the array
$shift = array_shift($days);
// ... and add it to the end of the array
array_push($days,$shift);
}
// returns the sorted array
return $days;
}
?>
It basically takes an array starting with Monday and shifts each day to the end of the array until the first element in the array is today.
con_tobe at yahoo dot com
10-Jul-2008 03:46
10-Jul-2008 03:46
Doing $w-- for months ending on Sat won't hurt (i.e. if you're counting weeks as is the case below), but halocastle's code is perfectly fine as is and quite fast. He/she uses $w as a key for the $weeks array. "Halo" does this BEFORE $w++, so $w-- is superfluous as the loop has already ended. For May, 2008, I get 5 weeks as expected...
Array
(
[1] => Array
(
[4] => 1
[5] => 2
[6] => 3
)
[2] => Array
(
[0] => 4
[1] => 5
------------OMITTED-----------------
[4] => 22
[5] => 23
[6] => 24
)
[5] => Array
(
[0] => 25
[1] => 26
[2] => 27
[3] => 28
[4] => 29
[5] => 30
[6] => 31
)
)
I guess the one pit-fall of the code is if you overlap months, say the following year, then $m-- makes perfect since...I think (haven't gotten that far...yet).
I modified "Halo's" code to include months, too (this is from a snippet that produces a three month calendar, hence the outer $months loop, omitted here).
<?php
$m = date('m');
$Y = date('Y');
// for() {months loop omitted
$var_date = mktime(0, 0, 0, $m, 1, $Y);
$month_name = date('F', $var_date);
$months[$month_name]['DAYS'] = date('t', $var_date);
$months[$month_name]['FIRST_DAY'] = date('w', $var_date);
//}
foreach($months as $month => $key) {
$weeks = array();
for($i = 1, $j = $key['FIRST_DAY'], $w = 1;$i <= $key['DAYS'];$i++) {
$weeks[$w][$j] = $i;
$j++;
if($j == 7) {
$j = 0;
$w++;
}
}
$months[$month]['WEEKS'] = $weeks;
}
?>
Enjoy!
halocastle at yahoo dot com
01-Jul-2008 04:20
01-Jul-2008 04:20
Weeks and days for any month/year combo:
<?php
$m = 2; // February
$Y = 2008;
// constants used here for legibility, use $vars for dynamicon...
define('MONTH_DAYS',date('t', strtotime(date($m . '/01/' . $Y))));
// w:0->6 = Sun->Sat
define('MONTH_FIRST_DAY',date('w', strtotime(date($m . '/01/' . $Y))));
for($i = 1, $j = MONTH_FIRST_DAY, $w = 1;$i <= MONTH_DAYS;$i++) {
$week[$w][$j] = $i;
$j++;
if($j == 7) {
$j = 0;
$w++;
}
}
?>
print_r($week):
-----------------------
Array
(
[1] => Array
(
[5] => 1
[6] => 2
)
[2] => Array
(
[0] => 3
[1] => 4
[2] => 5
[3] => 6
[4] => 7
[5] => 8
[6] => 9
)
[3] => Array
(
[0] => 10
[1] => 11
[2] => 12
[3] => 13
[4] => 14
[5] => 15
[6] => 16
)
[4] => Array
(
[0] => 17
[1] => 18
[2] => 19
[3] => 20
[4] => 21
[5] => 22
[6] => 23
)
[5] => Array
(
[0] => 24
[1] => 25
[2] => 26
[3] => 27
[4] => 28
[5] => 29
)
)
[EDIT BY danbrown AT php DOT net: In a note dated 03-JUL-08, (dmagick AT gmail DOT com) offered the following amendment to this note.]
[I've updated this] code as it doesn't take into account when a month finishes on a Saturday (eg May 2008).
<?php
$start_date = mktime(0, 0, 0,$start_month, 1, $start_year);
$days_in_month = date('t', $start_date);
$month_first_day = date('w', $start_date);
$j = $month_first_day;
$num_weeks = 1;
for($i = 1; $i <= $days_in_month; $i++) {
$j++;
if($j == 7) {
$j = 0;
$num_weeks++;
}
}
// if the last day of the month happens to be a Saturday,
// take one off the number of weeks
// because it was being added inside the for loop.
if ($j == 0) {
$num_weeks--;
}
?>
Kavi Siegel
30-Jun-2008 02:18
30-Jun-2008 02:18
I wrote the following function to show a series of drop down boxes to select the date. When provided with a timestamp, that date is selected by default, when none is provided, the current date is selected.
<?php
function chooseDate($timestamp = ""){
if($timestamp == ""){
$timestamp = time();
}
$months = array(null, 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
unset($months[0]);
print_r($months);
$out = '<select name="month">';
foreach($months as $key => $month){
if($month == date('M', $timestamp)){
$out .= '<option value="'.$key.'" selected="selected">'.$month.'</option>';
}else{
$out .= '<option value="'.$key.'">'.$month.'</option>';
}
}
$out .= '</select><select name="days">';
for($i = 1; $i <= 32; $i++){
if($i == date('j', $timestamp)){
$out .= '<option value="'.$i.'" selected="selected">'.$i.'</option>';
}else{
$out .= '<option value="'.$i.'">'.$i.'</option>';
}
}
$out .= "</select><select name='year'>";
for($i = <