Day, Month, Year Loop

[aspekt9]

I'm trying to loop through all the days in a year and display each date with all the digits together in this format: mmddyyyy.pdf and have it display each one line by line. It does everything except it loops through all 300 years before it increases to the next day / month. So it looks like this:
01012007
01012008
...
02012007
02012007

I want it to go
01012007
01022007
01032007
...etc.

<?php
  $dirpath = "notices/";
  // open the directory
  $dir = opendir($dirpath);

  // read the files into an array
  $files = array();
  while (false !== ($file = readdir($dir))) {
      $files[] = $file;
      for ($i = 1; $i <= 12; $i++) {
		if ($day <= 9) {
          $day = '0'.$i;
		} else {
		  $day = $i;
		}
          for ($m = 1; $m <= 31; $m++) {
			if ($month <= 9) {
              $month = '0'.$m;
			} else {
			  $month = $m;
			}
              for ($y = 2006; $y <= 2300; $y++) {
                  $year = $y;
                  $date .= $month . $day . $year . '.pdf <br />';
              }
          }
      }
      echo $date;
      // $linked = array_search($date, $files);
      // echo $linked . '<br />';
  }
  // echo $linked;
  //print_r($files);
?>

In notices theres around 200 pdf files labeled with the dates all mashed together like that with a .pdf file extension. so they are all labeled mmddyyyy.pdf.

[devinemke]

$start = '2007-01-01';
$end = '2007-12-31';

$start_ts = strtotime($start);
$end_ts = strtotime($end);

while ($start_ts <= $end_ts)
{
	echo date('mdY', $start_ts) . '<br>';
	$start_ts = strtotime(date('Y-m-d', $start_ts) . ' +1 day');
}

[NogDog]

You want the outer loop to be on the year, the middle loop to be the month, and the inner loop to be the day. It also looks like you'll have invalid dates for months that have less than 31 days.

$date = '';
for($y = 2006; $y <= 2300; $y++)
{
  for($m = 1; $m <= 12; $m++)
  {
    for($d = 1; $d <= 31; $d++)
    {
      if($d > 28 and !checkdate($m, $d, $y))
      {
        break;
      }
      $date .= sprintf("%02d%02d%04d.pdf<br />\n", $m, $d, $y);
    }
  }
}
echo $date;

[NogDog]

devinemke wrote:

$start = '2007-01-01';
$end = '2007-12-31';

$start_ts = strtotime($start);
$end_ts = strtotime($end);

while ($start_ts <= $end_ts)
{
	echo date('mdY', $start_ts) . '<br>';
	$start_ts = strtotime(date('Y-m-d', $start_ts) . ' +1 day');
}

Note that the OP wants to go up to the year 2300. Therefore, functions like date() and strtotime() which utitlize "UNIX epoch" timestamps will fail once the dates pass the point in 2038 where the 32-bit integer overflows (unless they're running on a system that utilizes 64-bit integers for timestamps, which I don't know if PHP even supports).

[aspekt9]

I've fixed it using your suggestion and it works great. However, I think what I'm trying to do doesn't require searching for the times? I want to locate all the files in the notcies directory and import them into a calendar and link to them. So since the files are already named with the date. What would be the easiest way to incorporate it into my calendar. This is how I have my calendar setup: right now it pulls the dates from the database so I want it to now pull them from all the file names and link them:

<?php
include 'config.php';
include 'calendar.php';
$time = time();
$today = date('j',$time);
$cmonth = date('n');
	$events = mysql_query("SELECT *, DATE_FORMAT(date, '%M %e, %Y %h:%m:%s') as
            date,  DATE_FORMAT(date, '%c') as month,  DATE_FORMAT(date, '%e') as day FROM calevents order by date desc") or die(mysql_error());
        if($events)
          {
          $days = array();
          while($row = mysql_fetch_array($events))
            {
            if($row['month'] == $cmonth)
              {
              $day = $row['day'];
              $days[$day] = array('events.php?action=view&id='.$row['id'], 'linked-day');
              }
           }
        }	
//$days[$today] = array(NULL,NULL,'<span style="color: red; font-weight: bold;">'.$today.'</span>');
echo generate_calendar(date('Y', $time), date('n', $time), $days, 3);
?>