Home  >  Article  >  Backend Development  >  使ecshop模板中可引用常量的实现方法_PHP

使ecshop模板中可引用常量的实现方法_PHP

WBOY
WBOYOriginal
2016-06-01 12:17:00801browse

Ecshop

比如$smarty.const.'常量',这个就不能用。
其实模板引擎原理上并不复杂,只是把一些模板标签替换为php中的函数,变量,语法结构罢了。
这次要在ecshop模板中加入引用常量的功能,只需在函数make_var()中加入两行代码
复制代码 代码如下:
function make_var($val)
{
if (strrpos($val, '.') === false)
{
if (isset($this->_var[$val]) && isset($this->_patchstack[$val]))
{
$val = $this->_patchstack[$val];
}
$p = '$this->_var[\'' . $val . '\']';
}
else
{
$t = explode('.', $val);
$_var_name = array_shift($t);
if (isset($this->_var[$_var_name]) && isset($this->_patchstack[$_var_name]))
{
$_var_name = $this->_patchstack[$_var_name];
}
if ($_var_name == 'smarty')
{
if($t[0] == 'const'){
return strtoupper($t[1]);
}
$p = $this->_compile_smarty_ref($t);
}
else
{
$p = '$this->_var[\'' . $_var_name . '\']';
}
foreach ($t AS $val)
{
$p.= '[\'' . $val . '\']';
}
}
return $p;
}

其中21-23行是新加的,这让就可在模板文件中通过 {$smarty.const.常量}来引用php中定义的常量了
复制代码 代码如下:
21 if($t[0] == 'const'){
22 return strtoupper($t[1]);
23 }
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn