$php_handling
This tells Smarty how to handle PHP code embedded in the
templates. There are four possible settings, default being
SMARTY_PHP_PASSTHRU. Note that this does NOT affect php code
within {php}{/php}
tags in the template.
SMARTY_PHP_PASSTHRU - Smarty echos tags as-is.
SMARTY_PHP_QUOTE - Smarty quotes the tags as
html entities.
SMARTY_PHP_REMOVE - Smarty removes the tags from
the templates.
SMARTY_PHP_ALLOW - Smarty will execute the tags
as PHP code.
