I have the following code that return's the next 13 Mondays from today's date.
for($i=1; $i<=13; $i++){
echo date("Y-m-d", strtotime('+'.$i.' Monday'))."<br>";
}
I want to be able to amend this so it not only shows the next 13 Mondays but the Monday that has just past.
I tried amending the code as follows but I then get two instances of the next Monday returned.
for($i=-1; $i<=13; $i++){
echo date("Y-m-d", strtotime('+'.$i.' Monday'))."<br>";
}
Data returned.
2015-04-13
2015-04-20 //<--
2015-04-20
2015-04-27
2015-05-04
2015-05-11
2015-05-18
2015-05-25
2015-06-01
2015-06-08
2015-06-15
2015-06-22
2015-06-29
2015-07-06
2015-07-13
Any ideas on how I achieve this?
I would do it like this:
for($i =- 1; $i <= 13; $i == 0 ? $i += 2 : $i++){
echo date("Y-m-d", strtotime("$i Monday")) . "<br>";
}
Using a ternary operator to check if $i is 0 - and if, increase it by 2 instead of 1 :)
Try this:
echo date("Y-m-d", strtotime('-1 Monday'))."<br>";
for($i=1; $i<=13; $i++){
echo date("Y-m-d", strtotime('+'.$i.' Monday'))."<br>";
}
Or you need only one for statement?
function mondays() {
$begin = new DateTime('last monday');
$end = clone $begin;
$end->add(new DateInterval('P14W')); // next 13 + last
$interval = new DateInterval('P1W');
$daterange = new DatePeriod($begin, $interval ,$end);
foreach($daterange as $date){
yield $date;
}
}
foreach(mondays() as $date){
echo $date->format("Y-m-d"), PHP_EOL;
}
You can use this:
for($i=-1; $i<=13; $i++){
if($i !== 0){
echo date("Y-m-d", strtotime('+'.$i.' Monday'))."<br>";
}
}
You just have to omit the case that $i is zero.
This should works (and you can test also other days != today)
//In order to avoid problems with midnight and daylight saving time
$refTime = date("Y-m-d 12:00:00");
for($i=-1; $i<13; $i++){
echo date("Y-m-d", strtotime("$refTime this Monday +".$i*7 ." days"))."<br>";
}
My approach will be the following (by using DateTime class)
$monday = new DateTime('last monday'); //if today is monday this will return last week's
$oneWeek = new DateInterval('P1W');
for($i=0; $i<=13; $i++){
echo $monday->format('Y-m-d')."<br>";
$monday->add($oneWeek);
}
Related
How can i get next 10 Sundays by giving just current data,
Following is my code but it is between date ranges i just want to give start date and get next 10 Sundays from start date(Without end date).
$allweeks=array();
$startDate = date('Y-m-d');
$date = new DateTime($startDate);
$interval = new DateInterval('P2M');
$date->add($interval);
$endDate=$date->format('Y-m-d');
for ($i = strtotime($startDate); $i <= strtotime($endDate); $i = strtotime('+1 day', $i)) {
if (date('N', $i) == 1)
$allweeks[]= date('n-j', $i);
}
foreach($allweeks as $wks)
{
$weeks=explode('-', $wks);
echo '=Week of '.$weeks[0]."/".$weeks[1];
}
you can use DateTime class or strtotime function for same:
Have a look on below code:
Using DateTime Class
$date = '2016-04-05';
$date = new DateTime($date);
// Modify the date it contains
for($i =0; $i < 10; $i++){
$date->modify('next sunday');
// Output
echo $date->format('l : Y-m-d');
echo '<br />';
}
Using strtotime function
$date = '2016-04-05';
// Modify the date it contains
for($i =0; $i < 10; $i++){
$date = date('Y-m-d', strtotime('next sunday', strtotime($date)));
echo date('l : Y-m-d', strtotime($date));
echo '<br />';
}
output
Sunday : 2016-04-10
Sunday : 2016-04-17
Sunday : 2016-04-24
Sunday : 2016-05-01
Sunday : 2016-05-08
Sunday : 2016-05-15
Sunday : 2016-05-22
Sunday : 2016-05-29
Sunday : 2016-06-05
Sunday : 2016-06-12
I am looking on how to get specific day from time given :
let's say I have 2 dates : 1 Jan 2016 until 1 Jan 2017, I will need to know how many Mondays are there, or Tuesdays or any days that I select on the input I gave.
Is there any best way to achieve this ?
UPDATED ANSWER
<?php
$count = 0;
$days = array("Monday", "Friday");
foreach ($days as $day) {
$startDate = '1 Jan 2016';
$endDate = '1 Jan 2017';
$endDate = strtotime($endDate);
$i = '';
for ($i = strtotime($day, strtotime($startDate)); $i <= $endDate; $i = strtotime('+1 week', $i)) {
echo date('l Y-m-d', $i) . '<br>';
$count++;
}
}
echo $count;
Try modify this example:
<?php
//http://php.net/manual/en/class.dateperiod.php#109846
$begin = new DateTime( '2012-08-01' );
$end = new DateTime( '2012-08-31' );
$end = $end->modify( '+1 day' );
$interval = new DateInterval('P1D');
$daterange = new DatePeriod($begin, $interval ,$end);
foreach($daterange as $date){
//HERE ADD YOUR CONDITIONS...
echo $date->format("Ymd") . "<br>";
}
?>
You can reviewer this solution PHP create range of dates
get all days and loop through them all, get the first Monday after the start date and then iterate 7 days at a time:
$endDate = strtotime($endDate);
for($i = strtotime('Monday', strtotime($startDate)); $i <= $endDate; $i =strtotime('+1 week', $i))
echo date('l Y-m-d', $i);
I'd like to work with PHP DateInterval to iterate through months:
$from = new DateTime();
$from->setDate(2014, 1, 31);
$period = new DatePeriod($from, new DateInterval('P1M'), 12);
I'd expect it to returns 31 January, 28 February (as the DateInterval is 1 month), but it actually returns 31 January, 3 March, 3 of April... hence skipping February.
Is there any way to do this simply?
Thanks!
EDIT : as a refernece, here is a solution that seems to cover most use cases:
$date = new DateTime('2014-01-31');
$start = $date->format('n');
for ($i = 0; $i < 28; $i++) {
$current = clone $date;
$current->modify('+'.$i.' month');
if ($current->format('n') > ($start % 12) && $start !== 12) {
$current->modify('last day of last month');
}
$start++;
echo $current->format('Y-m-d').PHP_EOL;
}
You can use DateTime::modify():
$date = new DateTime('last day of january');
echo $date->format('Y-m-d').PHP_EOL;
for ($i = 1; $i < 12; $i++) {
$date->modify('last day of next month');
echo $date->format('Y-m-d').PHP_EOL;
}
EDIT: I think I didn't understand your question clearly. Here is a new version:
$date = new DateTime('2014-01-31');
for ($i = 0; $i < 12; $i++) {
$current = clone $date;
$current->modify('+'.$i.' month');
if ($current->format('n') > $i + 1) {
$current->modify('last day of last month');
}
echo $current->format('Y-m-d').PHP_EOL;
}
The issue is cause by the variance between the last day in each of the months within the range. ie. February ending on 28 instead of 31 and the addition of 1 month from the last day 2014-01-31 + 1 month = 2014-03-03 https://3v4l.org/Y42QJ
To resolve the issue with DatePeriod and simplify it a bit, adjust the initial date by resetting the specified date to the first day of the specified month, by using first day of this month.
Then during iteration, you can modify the date period date by using last day of this month to retrieve the bounds of the currently iterated month.
Example: https://3v4l.org/889mB
$from = new DateTime('2014-01-31');
$from->modify('first day of this month'); //2014-01-01
$period = new DatePeriod($from, new DateInterval('P1M'), 12);
foreach ($period as $date) {
echo $date->modify('last day of this month')->format('Y-m-d');
}
Result:
2014-01-31
2014-02-28
2014-03-31
2014-04-30
2014-05-31
2014-06-30
2014-07-31
2014-08-31
2014-09-30
2014-10-31
2014-11-30
2014-12-31
2015-01-31
Then to expand on this approach, in order to retrieve the desired day from the specified date, such as the 29th. You can extract the specified day and adjust the currently iterated month as needed when the day is out of bounds for that month.
Example: https://3v4l.org/SlEJc
$from = new DateTime('2014-01-29');
$day = $from->format('j');
$from->modify('first day of this month'); //2014-01-01
$period = new DatePeriod($from, new DateInterval('P1M'), 12);
foreach ($period as $date) {
$lastDay = clone $date;
$lastDay->modify('last day of this month');
$date->setDate($date->format('Y'), $date->format('n'), $day);
if ($date > $lastDay) {
$date = $lastDay;
}
echo $date->format('Y-m-d');
}
Result:
2014-01-29
2014-02-28 #notice the last day of february is used
2014-03-29
2014-04-29
2014-05-29
2014-06-29
2014-07-29
2014-08-29
2014-09-29
2014-10-29
2014-11-29
2014-12-29
2015-01-29
You may try like this:
$date = new DateTime();
$lastDayOfMonth = $date->modify(
sprintf('+%d days', $date->format('t') - $date->format('j'))
);
I would do it probably like this
$max = array (
31,28,31,30,31,30,31,31,30,31,30,31
); //days in month
$month = 1;
$year = 2014;
$day = 31;
$iterate = 12;
$dates = array();
for ($i = 0;$i < $iterate;$i++) {
$tmp_month = ($month + $i) % 12;
$tmp_year = $year + floor($month+$i)/12;
$tmp_day = min($day, $max[$tmp_month]);
$tmp = new DateTime();
$tmp->setDate($tmp_year, $tmp_month + 1, $tmp_day);
$dates[] = $tmp;
}
var_dump($dates);
This keeps to the same day each month if possible
I want a loop that checks the current month, 12 months in the future and 4 months in the past.
For example: Today is 1st August 08. My loop should go through April, May, June, July, August, September, October, November, December, January, February, March, April, May, June, July, and August.
I have tried strotime but I don't know how I can loop 4 months back and 12 months in the future.
Here is my code
$i = 1;
$month = strtotime('2013-08-01');
while($i <= 12) {
$month_name = date('F', $month);
echo $month_name;
echo "<br>";
$month = strtotime('+1 month', $month);
$i++;
I think Yoshi was almost there with his answer, but using DatePeriod with DateTime is more consistent and makes for more readable code IMHO:-
$oneMonth = new \DateInterval('P1M');
$startDate = \DateTime::createFromFormat('d H:i:s', '1 00:00:00')->sub(new \DateInterval('P4M'));
$period = new \DatePeriod($startDate, $oneMonth, 16);
foreach($period as $date){
//$date is an instance of \DateTime. I'm just var_dumping it for illustration
var_dump($date);
}
See it working
This can be quite tricky, here's how I would do it:
$month = date("n", "2013-08-01") - 1; // -1 to get 0-11 so we can do modulo
// since you want to go back 4 you can't just do $month - 4, use module trick:
$start_month = $month + 8 % 12;
// +8 % 12 is the same is -4 but without negative value issues
// 2 gives you: 2+8%12 = 10 and not -2
for ($i = 0; $i < 16; $i += 1) {
$cur_month = ($start_month + $i) % 12 + 1; // +1 to get 1-12 range back
$month_name = date('F Y', strtotime($cur_month . " months"));
var_dump(month_name);
}
something like this?:
$start = -4;
$end = 12;
for($i=$start; $i<=$end;$i++) {
$month_name = date('F Y', strtotime("$i months"));
echo $month_name;
echo "<br>";
}
Your code, just slightly modified.
date_default_timezone_set('UTC');
$i = 1;
$month = strtotime('-4 month');
while($i <= 16) {
$month_name = date('F', $month);
echo $month_name;
echo "<br>";
$month = strtotime('+1 month', $month);
$i++;
}
Simplest solution:
for($i=-4; $i<=12; $i++) {
echo date("F",strtotime( ($i > 0) ? "+$i months" : "$i months") )."\n";
}
Explanation:
The loop starts at -4 and goes all the way upto 12 (total 17, including 0). The ternary statement inside strtotime() simply checks if $i is positive, and if it is, a + is inserted so that we'll get the results for strtotime("+1 months") and similar.
Ta-da!
Using DateTime is the easiest and more readable way.
I would do it like this:
$from = new DateTime('-4 month');
$to = new DateTime('+12 month');
while($from < $to){
echo $from->modify('+1 month')->format('F');
}
Is it possible to get the weekday of the 21st of the next 6 months in PHP?
For example, say the 21st falls on a Tuesday next month, then I want "Tuesday" to be returned. But I want this for each of the next 6 months. What is the most elegant solution to this?
Something like that will give you the expected result:
// starting date
$date = new DateTime('2012-08-21');
// iterate for 6 months
for ($i = 0; $i < 6 ; $i++) {
echo $date->format('Y-m-d').' : '.$date->format('l') . PHP_EOL;
$date->modify('+1 month');
}
The DatePeriod and DateInterval classes are super-handy for this sort of thing.
$date = DateTime::createFromFormat('d', 21);
$period = new DatePeriod($date, new DateInterval('P1M'), 6, DatePeriod::EXCLUDE_START_DATE);
foreach ($period as $day) {
echo $day->format('M jS => l'), PHP_EOL;
}
Yes:
<?php
$date = new DateTime;
$date->modify("first day of this month");
$date->modify("+20 days"); //21st
echo $date->format("F: l (Y-m-d)") . PHP_EOL;
for ($i = 0; $i < 6; $i++) {
$date->modify("+1 month");
echo $date->format("F: l (Y-m-d)") . PHP_EOL;
}
Untested, but try this:
$date = 21;
$year = 2012;
$month = date('m'); // Get current month
for($i=0;$i<6;$i++)
{
if($month == 13)
{
$year++;
$month=1;
}
$day = date('l',mktime(0,0,0,$month,$date,$year));
echo "$month $date falls on $day<br />\n";
$month++;
}