如何从 php 文件中获取声明函数的列表及其数据？

发布于 2024-08-29 21:38:09 字数 1538 浏览 4 评论 0原文

我需要从 php 文件中获取函数列表及其内容（不仅仅是函数名称）。我尝试使用正则表达式，但它有很多限制。它不解析所有类型的函数。例如，如果函数有 if 和 for 循环语句，则它会失败。

详细信息：我有大约 100 个包含文件。每个文件都有许多声明的函数。某些文件的功能与其他文件重复。所以我想要的是从特定文件中获取所有函数的列表，然后将此列表放入数组中，然后我将使用唯一的数组来删除重复项。我读过有关分词器的内容，但我真的不知道如何让它抓取声明的函数及其数据。我所拥有的就是：

function get_defined_functions_in_file($file) 
{
    $source = file_get_contents($file);
    $tokens = token_get_all($source);

    $functions = array();
    $nextStringIsFunc = false;
    $inClass = false;
    $bracesCount = 0;

    foreach($tokens as $token) {
        switch($token[0]) {
            case T_CLASS:
                $inClass = true;
                break;
            case T_FUNCTION:
                if(!$inClass) $nextStringIsFunc = true;
                break;

            case T_STRING:
                if($nextStringIsFunc) {
                    $nextStringIsFunc = false;
                    $functions[] = $token[1];
                }
                break;

            // Anonymous functions
            case '(':
            case ';':
                $nextStringIsFunc = false;
                break;

            // Exclude Classes
            case '{':
                if($inClass) $bracesCount++;
                break;

            case '}':
                if($inClass) {
                    $bracesCount--;
                    if($bracesCount === 0) $inClass = false;
                }
                break;
        }
    }

    return $functions;
}

不幸的是，这个函数只列出了函数名称。我需要的是列出整个声明的函数及其结构。有什么想法吗？

提前致谢..

原文

I need to get list of functions with their contents (not only the function name) from php file. I tried to use regex but it has lots of limitations. it doesn't parse all types of functions. for example it fails if the function has if and for loop statements.

in details:
I have around 100 include files. each file has number of declared functions. some files has functions duplicated in other files. so what I want is to get list of all functions from specific file then put this list inside an array then I will be using array unique in order to remove the duplicates. I read about tokenizer but I really have no idea how to make it grab the declared function with its data.
all I have is this:

function get_defined_functions_in_file($file) 
{
    $source = file_get_contents($file);
    $tokens = token_get_all($source);

    $functions = array();
    $nextStringIsFunc = false;
    $inClass = false;
    $bracesCount = 0;

    foreach($tokens as $token) {
        switch($token[0]) {
            case T_CLASS:
                $inClass = true;
                break;
            case T_FUNCTION:
                if(!$inClass) $nextStringIsFunc = true;
                break;

            case T_STRING:
                if($nextStringIsFunc) {
                    $nextStringIsFunc = false;
                    $functions[] = $token[1];
                }
                break;

            // Anonymous functions
            case '(':
            case ';':
                $nextStringIsFunc = false;
                break;

            // Exclude Classes
            case '{':
                if($inClass) $bracesCount++;
                break;

            case '}':
                if($inClass) {
                    $bracesCount--;
                    if($bracesCount === 0) $inClass = false;
                }
                break;
        }
    }

    return $functions;
}

unfortunately, this function lists only the function names..
what I need is to list the whole declared function with its structure..
so any ideas?

thanks in advance..

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薆情海 2024-09-05 21:38:09

如果您从 get_defined_functions 获取了函数名称，请考虑使用 Reflection API 完成剩余的工作。

示例：

include 'file-with-functions.php';
$reflector = new ReflectionFunction('foo'); // foo() being a valid function
$body = array_slice(
    file($reflector->getFileName()), // read in the file containing foo()
    $reflector->getStartLine(), // start to extract where foo() begins
    $reflector->getEndLine() - $reflector->getStartLine()); // offset

echo implode($body);

像 @nunthrey 建议，您还可以使用 Zend_Reflection 来获取：文件中的函数及其内容。 Zend_Reflection 示例：

$reflector = new Zend_Reflection_File('file-with-functions.php');
foreach($reflector->getFunctions() as $fn) {
    $function = new Zend_Reflection_Function($fn->name);
    echo $function->getContents();
}

If you got the function names from your get_defined_functions, consider using Reflection API for the remaining work.

Example:

include 'file-with-functions.php';
$reflector = new ReflectionFunction('foo'); // foo() being a valid function
$body = array_slice(
    file($reflector->getFileName()), // read in the file containing foo()
    $reflector->getStartLine(), // start to extract where foo() begins
    $reflector->getEndLine() - $reflector->getStartLine()); // offset

echo implode($body);

Like @nunthrey suggested, you can also use Zend_Reflection to get both: the functions in a file and their content. Example with Zend_Reflection:

$reflector = new Zend_Reflection_File('file-with-functions.php');
foreach($reflector->getFunctions() as $fn) {
    $function = new Zend_Reflection_Function($fn->name);
    echo $function->getContents();
}

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