{$title}

{$subheading}

'; function render($str) { $title = 'Delayed String Parsing'; $subheading = 'As demonstrated by the following sample code'; $defined_variables = get_defined_vars(); $defined_variable_keys = array_keys($defined_variables); $parsed_string = $str; for ($i = 0; $i < count($defined_variable_keys); $i++) { $var_name = $defined_variable_keys[$i]; $parsed_string = str_replace('{$' . $var_name . '}', $defined_variables[$var_name], $parsed_string); } return $parsed_string; } echo render($template);