如何在当前日期添加天数

Question

echo "No of days:";
$var1 = file_get_contents('path to file');
echo $var1;
$var2= "-".$var1." days";  // var2= -2 days

$today = date("M d, Y");
echo $today;
$NewDate=Date(strtotime($var2));
echo date('M d, Y', $NewDate);

Error:Warning: date() expects parameter 2 to be long,

Answer 1

尝试这个：

$var2= $var1." days ago"; 

Answer 2

$var = file_get_contents('path to file');
echo date('M d Y',strtotime("-$var days"));

Answer 3

Why not do it like this:

    $date = new DateTime(date("M d, Y"));
    $todayPlusTwoDays = $date->add(new DateInterval('P2D'));

If $var1 holds the amount of days to add, simply:

    $todayPlusTwoDays = $date->add(new DateInterval('P'. $var1 .'D'));

Answer 4

From me

Remove this

$today = date("M d, Y");
echo $today;

You are not using it anyway.