get variable smarty in php tag

Question

We want to make date whmcs7 Gregorian dates change from the jalali That's why we put the following code in the file tpl smarty

{$invoice.datecreated}
{php}
    include_once ($_SERVER["DOCUMENT_ROOT"] ."/templates/six/jdf.php");
    $date = '{$invoice.datecreated}';
    list($g_y, $g_m, $g_d) = explode("/", $date);
    $str="/";
    print "(".gregorian_to_jalali ($g_y, $g_m, $g_d,$str).")";
{/php}

But this piece of code instead of putting on the variable The insertion string

$date = '{$invoice.datecreated}';
print $date;  // result: invoice.datecreated Instead 2015/01/31

please guide me

Answer 1

I think you need double quotes.

$date = "{$invoice.datecreated}"; //double quotes here as "
print $date;

Example:

$name = "My name";

echo '{$name}';//outputs {$name}
echo "{$name}";//outputs My name