常量替換 · AAPHP開發手冊

### 模板替換在進行模板輸出之前，系統還會對渲染的模板結果進行一些模板的特殊字符串替換操作，也就是實現了模板輸出的替換和過濾。 ~~~ __ROOT__ 會被替換成當前網站的網站根目錄 http://localhost/ ~~~ ### 實例 ~~~ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>fetch</title> </head> <body>  <include file="./application/example/view/Include/header.html"/> I am __ROOT__/application/example/view/ViewExample/includeExample.html  <include file="./application/example/view/Include/footer.html"/> </body> </html> ~~~ 解析后的編譯文件 ~~~ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>fetch</title> </head> <body>  <h2>I am header.html</h2> I am <?php echo __ROOT__; ?>/application/example/view/ViewExample/includeExample.html  <h2>I am footer.html</h2> </body> </html> ~~~ 最終輸出 ~~~ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>fetch</title> </head> <body>  <h2>I am header.html</h2> I am http://localhost/aaphp_blog/application/example/view/ViewExample/includeExample.html  <h2>I am footer.html</h2> </body> </html> ~~~