在PHP中获得前几个月

Question

I need to display 3 month from the previous month in php

Here is what I have tried so far

<select style='width: 112px;' name='PayMonth'>
<option name="PayMonth" value=''>Select Month</option>   
<?php
for($i = 1 ; $i <= 12; $i++)
{
$allmonth = date("F",mktime(0,0,0,$i,1,date("Y")))
?>
<option value="<?php echo $i; ?>" ><?php echo date("F",mktime(0,0,0,$i,1,date("Y")));?>
</option>
<?php
}?>

This will display all months

But how can I display on 3 months from current month

i.e.,

If current month is april it should show Feb, Mar, Apr

If current month is jan it should show nov, dec, jan

I tried..

<?php

$month = date("m");

?>

But in the loop I am confused with

for($i = 1 ; $i <= $month; $i++)

Answer 1

If you are getting $month = date("m"); Then your forloop should be

for($i = $month-3 ; $i <= $month; $i++)

Sidenote :

As you are using

<option value="<?php echo $i; ?>" ><?php echo date("F",mktime(0,0,0,$i,1,date("Y")));?>

You may get -1, -2 inside the values. So you should change

<option value="<?php echo date("m",mktime(0,0,0,$i,1,date("Y"))); ?>" ><?php echo date("F",mktime(0,0,0,$i,1,date("Y")));?>

To get

<select style='width: 112px;' name='PayMonth'>
  <option name="PayMonth" value=''>Select Month</option>   
  <option value="11" >November  </option>
  <option value="12" >December  </option>
  <option value="01" >January  </option>
  <option value="02" >February  </option>   
</select>