Question

是否可以获取树枝模板中使用的所有变量例如：在模板上

<!DOCTYPE html>
<html>
    <head>
        <title>My Webpage</title>
    </head>
    <body>
        <ul id="navigation">
        {% for item in navigation %}
            <li><a href="{{ item.href }}">{{ item.caption }}</a></li>
        {% endfor %}
        </ul>

        <h1>My Webpage</h1>
        {{ a_variable }}
    </body>
</html>

现在我需要将上面使用的所有变量作为像

这样的数组

Array(1=>'navigation',2=>'a_variable')

如果它可以通过树枝本身来解决它是最好的

Answer 1

哟dawg，我听说你喜欢Twig所以我写了一个正则表达式，所以你可以解析你解析：

的正则表达式

\{\{(?!%)\s* # Starts with {{ not followed by % followed by 0 or more spaces ((?:(?!\.)[^\s])*) # Match anything without a point or space in it \s*(?<!%)\}\} # Ends with 0 or more spaces not followed by % ending with }} | # Or \{%\s* # Starts with {% followed by 0 or more spaces (?:\s(?!endfor)(\w+))+ # Match the last word which can not be endfor \s*%\} # Ends with 0 or more spaces followed by %} # Flags: i: case insensitive matching | x: Turn on free-spacing mode to ignore whitespace between regex tokens, and allow # comments.

的 PHP

$string = '<!DOCTYPE html> <html> <head> <title>My Webpage</title> </head> <body> <ul id="navigation"> {% for item in navigation %} <li><a href="{{ item.href }}">{{ item.caption }}</a></li> {% endfor %} </ul> <h1>My Webpage</h1> {{ a_variable }} </body> </html>'; preg_match_all('/\{\{(?!%)\s*((?:(?!\.)[^\s])*)\s*(?<!%)\}\}|\{%\s*(?:\s(?!endfor)(\w+))+\s*%\}/i', $string, $m); $m = array_map('array_filter', $m); // Remove empty values array_shift($m); // Remove first index [0] print_r($m); // Print results

Regex online demo PHP online demo

_{注意：这只是一个POC，绝不会用于制作。}

获取twig模板文件中使用的所有变量

1 个答案: