如何在 smarty .tpl 文件中调用 php 函数？
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How to call a php function inside a smarty .tpl file?
提问by srinu
Hi i have written a function in .php file. i.e.
嗨，我在 .php 文件中编写了一个函数。IE
public static function getCategories($id_lang = false, $active = true, $order = true, $sql_filter = '', $sql_sort = '',$sql_limit = '')
{
if (!Validate::isBool($active))
die(Tools::displayError());
$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->ExecuteS('
SELECT *
FROM `'._DB_PREFIX_.'category` c
LEFT JOIN `'._DB_PREFIX_.'category_lang` cl
ON c.`id_category` = cl.`id_category`
WHERE 1 '.$sql_filter.' '.($id_lang ? 'AND `id_lang` = '.(int)($id_lang) : '').'
'.($active ? 'AND `active` = 1' : '').'
'.(!$id_lang ? 'GROUP BY c.id_category' : '').'
'.($sql_sort != '' ? $sql_sort : 'ORDER BY c.`level_depth` ASC, c.`position` ASC').'
'.($sql_limit != '' ? $sql_limit : '')
);
if (!$order)
return $result;
$categories = array();
foreach ($result AS $row)
{
$categories[$row['id_parent']][$row['id_category']]['infos'] = $row;
}
return $categories;
}
and i want to call this function inside a .tpl file. I used {php} {/php}way,but this not works.
What is the way to call this one?
我想在 .tpl 文件中调用这个函数。我使用了{php} {/php}方式，但这不起作用。怎么称呼这个？
Thanks
谢谢
回答by Adam Hopkinson
Smarty is a templating language - if you want to output the results of a function, assign the output to a smarty variable
Smarty 是一种模板语言 - 如果要输出函数的结果，请将输出分配给 smarty 变量
$smarty->assign('categories', getCategories($args));
And then use it in your template
然后在你的模板中使用它
{$categories}
There are very few situations where this isn't the correct pattern.
在极少数情况下，这不是正确的模式。
回答by Usf Ahmed Subehi
you can use something like this and i always used it
你可以使用这样的东西，我总是用它
{category.id|function_name}
let me explain it :
让我解释一下：
category.id = is the id of the category you want to get information about in the function
category.id = 是您想要在函数中获取信息的类别的 id
function_name = is the name of the function
function_name = 是函数名
回答by Youssef K. Yassin
because you are using a static method, you will not be able to use $this keyword in your function. So therefore, you will not be able to use
因为您使用的是静态方法，所以您将无法在您的函数中使用 $this 关键字。因此，您将无法使用
$this->context->smarty->assign('categories', self::getCategories($args));
So you should create a variable and assign the context to it and in your case you will only need the smarty part of it.
因此，您应该创建一个变量并将上下文分配给它，在您的情况下，您只需要它的智能部分。
$smarty = Context::getContext()->smarty;
Now you can use this as follows:
现在您可以按如下方式使用它：
$smarty->assign('categories', self::getCategories($args));
I'm assuming that you will call the function in the same class, so I used self::getCategories($args), if you want to use it in another class use className::getCategories($args)
我假设您将在同一个类中调用该函数，因此我使用了self::getCategories($args)，如果您想在另一个类中使用它，请使用className::getCategories($args)
Hope this helps you, try it and give me feedback! ;)
希望这对您有帮助，请尝试并给我反馈！;)
回答by lvil
I agree with adam, though somitemies I use the php inside smarty due to given architecture.
There is another way to do it: with {insert}-http://www.smarty.net/docs/en/language.function.insert.tpl
我同意亚当的观点，尽管由于给定的架构，我在 smarty 中使用了 php。
还有另一种方法：使用{insert}- http://www.smarty.net/docs/en/language.function.insert.tpl
