Thursday, 4 June 2015

PHP: Calendar for any month any year

<?php

    # ***  Set time stamp.Check for month requested(value from request form)
    # ***  If no value has been set then make it for current month

   if(!$year){$year=2000; }
     if(!$req_month || $req_month=="none")
      {
         $dt_and_tm=time();
      }
      else
      {
         $dt_and_tm=mktime(0,0,0,$req_month,1,$year);
      }
   # *** Find out the month number from the time stamp we just created  
    # *** Find out the day of the week from the same(0 to 6 for Sunday to  
    # *** Saturday) add "1" so that it becomes 1 to 7 
                        
         $month=date("n",$dt_and_tm);
         $week_day=date("w",$dt_and_tm)+1;     

    # *** Set number days in requested month  
         
if($month==1 || $month==3 || $month==5 || $month==7 || $month==8 || $month==10 ||
$month==12)
{    
   $no_of_days=31;    
}
elseif($month==4 || $month==6 || $month==9 || $month==11)
{  
   $no_of_days=30;
}  

 # *** If the month requested is Feb. Check whether it is Leap Year     

elseif($month==2)
{  
                   if(date("L",$dt_and_tm))
                   { $no_of_days=29 ;}
                   else
                   {$no_of_days=28;}
}
   $month_full=date("F",$dt_and_tm);
    

# ************ HTML code goes from here 
# ************ First row in HTML table displays month and year  
# ************ Second row is allotted for week days
# ************ Table contains six more rows (total 42 table cells)  
?>
<html>
<body>
<table width=300>
<tr bgcolor="#003366"><td colspan=7>
<font face="Arial , Times New Roman " size=2 color="#ffffff"><b><?php echo "$month_full  
$year" ; ?></b></font></td></tr>
<tr bgcolor="#006699">
<td><font face="Arial , Times New Roman " size=2 color="#ffffff">Sun</fon></td><td><font
face="Arial , Times New Roman " size=2 color="#ffffff">Mon</font></td><td><font
face="Arial , Times New Roman " size=2 color="#ffffff">Tue</font></td><td><font
face="Arial , Times New Roman " size=2 color="#ffffff">Wed</font></td><td><font
face="Arial , Times New Roman " size=2 color="#ffffff">Thu</font></td><td><font
face="Arial , Times New Roman " size=2 color="#ffffff">Fri</font></td><td><font face="Arial ,
Times New Roman " size=2 color="#ffffff">Sat</font></td>
</tr>
<tr bgcolor="silver">
<?php
# *** We need to start form week day and print total number of days 
# *** in this month.For that we need to find out the last cell. 
# *** While looping end current row and start new row for each 7 cells

$last_cell=$week_day+$no_of_days;      
for($i=1;$i<=42;$i++)
{
   if($i==$week_day){$day=1;}
   if($i<$week_day || $i>=$last_cell)
   {
        
     echo "<td>?</td>";
      if($i%7==0){echo "</tr><tr bgcolor=\"silver\">\n";}   
   }
   else
   {
        
        echo "<td>$day</td>";
        $day++;
       if($i%7==0) { echo "</tr><tr bgcolor=\"silver\">\n"; }
         
   }
}
?>
</table></body></html>

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