php calendar code efficient calendar code implemented in php-PHP Tutorial-php.cn

/*
* php calendar function
* edit: bbs.it-home.org
*/
@date_default_timezone_set('RPC');
function show_calender(){
$starttime=microtime();
//Processing request date
$y= isset($_GET["y"]) ? intval($ _GET["y"]) : date("Y");
$m= isset($_GET["m"]) ? intval($_GET["m"]) : date("m");
if ($m<1 || $m>12)$m=date("m");
if($y<=0)$y=date("Y");
$nm=$m+1;
if($nm>12){
$nm=1;
$ny=$y+1;
}else{
$ny=$y;
}
//Previous month
$pm=$m-1;
if($pm<1){
$pm=12;
$py=$y-1;
}else{
$py=$y;
}
//Get the name of this month
$month = date("M",mktime(0, 0, 0, $m, 1, $y));
//Get the last day of this month
$lastday = date("d",mktime(0, 0, 0, $nm, 0, $ny) );
//Get the day of the week when the day starts
$index = date("w",mktime(0, 0, 0, $m, 1, $y));< /p>
//Generate calendar header
echo "nn";
//Processing calendar
$row=0 ;
$day=1;
while(1){
echo "
";
if($row==0){
for($i=0;$i<=6;$i++)
if($i<$index)
echo "
";
else
echo "
";
}else{
for($i=0;$i<=6;$i++)
if($day>$lastday)
echo "
";
else
echo "";
}
echo "
";
$row++;
if($day>$lastday)break;
}
echo "
$endtime=microtime();
$usedtime=$endtime-$starttime;
return $usedtime;
}
$run_info= array();
for($i=0;$i<10;$i++)
$run_info[]=show_calender();
print_r($run_info);
?>
Copy code
Test results:
Array ( [0] => 0.00038400000000005 [1] => 0.00030999999999998 [2] => 0.000296999999999999 [3] => 0.000303 [4] => 0.00030399999999997 [5] => 0.00034499999999998 [6] => 0.00032300000000002 [7] => 0.00033 [8] => 0.00032699999999997 [9] => 0.00032000000000004 )
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- {$y} {$month} +

Day One Two Three Four< ;/td> five six

".$day++."

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