PHP native template engine The simplest template engine

The code is as follows:
$a = array(
'a','b','c'
);
require 'template/demo.php';//Reference template
?>

Template file:
Copy code The code is as follows:

 
 
 
 
 

Copy code The code is as follows: 
Key value: 
 
 
//Iteration of array 
//smarty: 
{foreach item=na from=$a key=key} 
Key value: {$key} 
 
{/foreach} 
//Which one is better understood by PHP programmers? 
//smarty also uses regular expressions to parse templates. PHP’s regular expressions are not that efficient...