How to make constants referenceable in ecshop templates_PHP tutorial

For example, $smarty.const.'constant' cannot be used.
In fact, the template engine is not complicated in principle. It just replaces some template tags with functions, variables, and grammatical structures in PHP.
To add the function of reference constants to the ecshop template this time, just add two lines of code to the function make_var()

Copy the code The code is as follows :

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;
}

where 21-23 The line is newly added, which allows you to reference the constants defined in PHP through {$smarty.const.const} in the template file

Copy code The code is as follows:

21 if($t[0] == 'const'){
22 return strtoupper($t[1]);
23 }

http://www.bkjia.com/PHPjc/323423.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/323423.htmlTechArticleFor example, $smarty.const.'constant', this cannot be used. In fact, the template engine is not complicated in principle. It just replaces some template tags with functions, variables, and grammatical structures in PHP. This...