PHP design pattern series-interpreter Pattern

Interpreter Mode
The interpreter mode analyzes key elements of an object and provides explanations or actions for each element. The interpreter mode is very common. For example, the PHP template engine is a very common interpreter mode.
Code:
[Php]
<? Php
// The Interpreter mode is used to analyze the key elements of an object and provide explanations or actions for each element.
// The Interpreter mode is very common. For example, the PHP template engine is a very common interpreter mode.
Class template {
 
Private $ left = '<! --{';
Private $ right = '} --> ';

Public function run ($ str ){
Return $ this-> init ($ str, $ this-> left, $ this-> right );
}

/** Www.2cto.com
* Template driver-Default Driver
* @ Param string $ str template file data
* @ Return string
*/
Private function init ($ str, $ left, $ right ){
$ Pattern = array ('/'. $ left. '/', '/'. $ right .'/');
$ Replacement = array ('','');
Return preg_replace ($ pattern, $ replacement, $ str );
}
}
$ Str = "this is a simple template class with the title: <! -- {Hello World} --> ";
$ Template = new template;
Echo $ template-> run ($ str );
Author: initphp