Numeric values

hello all

I am trying to learn php. How can i make this if statement shorter.


I am trying to make if statement that if $thisyear is less or more than $year by 1 or 2 or 3 than do something.

<?

$thisyear =  date("Y");

$year = $_REQUEST['year'];

?>
<select name="year">
<?
if ($thisyear != $year && $thisyear != $year - 1 && $thisyear != $year - 2 && $thisyear != $year - 3 && $thisyear != $year + 1 && $thisyear != $year + 2 && $thisyear != $year + 3) {
?>
<option title="<? echo $thisyear; ?>"><? echo $thisyear; ?></option>
<?
} 
?>
  
  <option title="<? echo $year -3; ?>"><? echo $year -3; ?></option>
  <option title="<? echo $year -2; ?>"><? echo $year -2; ?></option>
  <option title="<? echo $year -1; ?>"><? echo $year -1; ?></option>
  <option selected value="<? echo $year; ?>"><? echo $year; ?></option>
  <option title="<? echo $year +1; ?>"><? echo $year +1; ?></option>
  <option title="<? echo $year +2; ?>"><? echo $year +2; ?></option>
  <option title="<? echo $year +3; ?>"><? echo $year +3; ?></option>
</select>

PHP:

 

if ($year <= $thisyear + 3) {

    // Do something

} else {

    // Skip

}

PHP:

 

if ( abs($thisyear - $year) <= 3 ) {

echo "$thisyear = $year +/- 3";

}

PHP: