Dates

Dates

As a rule of thumb, always pass dates to Smarty as timestamps. This allows template designers to use date_format for full control over date formatting, and also makes it easy to compare dates if necessary.

Note: As of Smarty 1.4.0, you can pass dates to Smarty as unix timestamps, mysql timestamps, or any date parsable by strtotime().

Example 18-4. using date_format

{$startDate|date_format}

This will output:

Jan 4, 2001
{$startDate|date_format:"%Y/%m/%d"}

This will output:

2001/01/04
{if $date1 < $date2}
   ...
{/if}

When using {html_select_date} in a template, The programmer will most likely want to convert the output from the form back into timestamp format. Here is a function to help you with that.

Example 18-5. converting form date elements back to a timestamp

<?php

// this assumes your form elements are named
// startDate_Day, startDate_Month, startDate_Year

$startDate makeTimeStamp($startDate_Year$startDate_Month$startDate_Day);

function 
makeTimeStamp($year=''$month=''$day='')
{
   if(empty(
$year)) {
       
$year strftime("%Y");
   }
   if(empty(
$month)) {
       
$month strftime("%m");
   }
   if(empty(
$day)) {
       
$day strftime("%d");
   }

   return 
mktime(000$month$day$year);
}
?>

See also {html_select_date}, {html_select_time}, date_format and $smarty.now,

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