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Bug #13992 31st of month causes date function to 'skip'
Submitted: 2001-11-08 13:36 UTC Modified: 2001-11-08 13:49 UTC
From: john at londonriverside dot co dot uk Assigned:
Status: Not a bug Package: Date/time related
PHP Version: 4.0.4 OS: HP
Private report: No CVE-ID: None
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 [2001-11-08 13:36 UTC] john at londonriverside dot co dot uk 
See my web page on 31st of a month and notice how the months and/or days repeat: eg January, January, March, March etc.  www.londonriverside.co.uk/datebug.php

This is the code on the server:

<html>
<head>
</head>
<body>
//Select FromDay
    print ("<select name=\"FromDay\">");
    for ($x=1; $x<=31; $x++)
    {
      if (sprintf("%02d", date(d, mktime(0,0,0,1,$x,date("Y")))) == date(d) AND !ISSET($FromDay))
      {
      echo "<option value=\"" . sprintf("%02d", date(d, mktime(0,0,0,1,$x,date("Y")))) .  "\" selected>" . date(d, mktime(0,0,0,1,$x,date("Y"))) . "</option>\n";
      }
      elseif (sprintf("%02d", date(d, mktime(0,0,0,1,$x,date("Y")))) <> $FromDay) 
      {
      echo "<option value=\"" . sprintf("%02d", date(d, mktime(0,0,0,1,$x,date("Y")))) .  "\">" . date(d , mktime(0,0,0,1,$x,date("Y"))) . "</option>\n";
      }
      else
      {
      echo "<option value=\"" . sprintf("%02d", date(d, mktime(0,0,0,1,$x,date("Y")))) .  "\" selected>" . date(d, mktime(0,0,0,1,$x,date("Y"))) . "</option>\n";
      }
    }
    print ("</select>");

//Select FromMonth
    print ("</td>\n<td width=50><font face=verdana size=2>Month</font></td>\n<td width=61>");
    print ("<select name=\"FromMonth\">");
    for ($x=1; $x<=12; $x++)
    {
      if (sprintf("%02d", date(m, mktime(0,0,0,$x,date("d"),date("Y")))) == date(m) AND !ISSET($FromMonth)) 
      {
      echo "<option value=\"" . sprintf("%02d", date(m, mktime(0,0,0,$x,date("d"),date("Y")))) .  "\" selected>" . date(M , mktime(0,0,0,$x,date("d"),date("Y"))) . "</option>\n";
      }
      elseif (sprintf("%02d", date(m, mktime(0,0,0,$x,date("d"),date("Y")))) <> $FromMonth) 
      {
      echo "<option value=\"" . sprintf("%02d", date(m, mktime(0,0,0,$x,date("d"),date("Y")))) .  "\">" . date(M, mktime(0,0,0,$x,date("d"),date("Y"))) . "</option>\n";
      }
      else
      {
      echo "<option value=\"" . sprintf("%02d", date(m, mktime(0,0,0,$x,date("d"),date("Y")))) .  "\" selected>" . date(M , mktime(0,0,0,$x,date("d"),date("Y"))) . "</option>\n";
      }
    }
    print ("</select>");
?>
</body>
</html>



Regards,

John

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 [2001-11-08 13:44 UTC] derick@php.net 
I'm pretty sure this is not a bug, and your example URI didn't show anything. Please ask support questions on the php-general@lists.php.net mailinglist.

Derick
 [2001-11-08 13:49 UTC] cnewbill@php.net 
This is not a bug.  mktime and date are doing exactly what you told them to...take an long int date and convert it into something human readable.  It is not skipping it is simply giving you the accurate date for what mktime returned based on your input.

-Chris

Bug along the same lines http://bugs.php.net/bug.php?id=13888
 
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