Exchanging variables between templates and PHP

Assigning varibales from PHP into the template code

{php}
	$variable = 'variable content';
	$this->assign('SmartyVarsAreCaseSensitive', $variable);
{/php}

From PHP:

 {$SmartyVarsAreCaseSensitive} 

Relevant pages from Smarty documentation: assign() and assign_by_ref()

Using template variables in PHP

{assign var="SmartyVarsAreCaseSensitive" value="variable content"}

Smarty template variable: {$SmartyVarsAreCaseSensitive}

{php}

	$variable = $this->get_template_vars('SmartyVarsAreCaseSensitive');
	echo 'Smarty template variable in PHP: ';
	echo $variable;

{/php}

Relevant pages from Smarty documentation: get_template_vars()