重建/获取php函数代码 [英] reconstruct/get code of php function

问题描述

我可以通过编程方式获得功能名称的代码吗?

Can I programmatically get a code of function by it's name?

赞:

function blah($a, $b) { return $a*$b; }
echo getFunctionCode("blah");

有可能吗?

是否有任何PHP自描述函数可重构函数/类代码?
(意味着不要从源文件中正确获取源代码)

Are there any php self-descriptive functions to reconstruct function/class code?
(mean instead of getting source code right from sources file)

在Java中存在: http://java.sun.com/developer/technicalArticles/ALT/Reflection /

在PHP中:
get_class_methods()
typeof
ReflectionFunction(感谢Alin Purcaru)

In PHP:
get_class_methods()
typeof
ReflectionFunction (thanks Alin Purcaru)

推荐答案

在扩大使用ReflectionFunction的建议的范围内，您可以使用类似以下的内容:

Expanding on the suggestion to use the ReflectionFunction, you could use something like this:

$func = new ReflectionFunction('myfunction');
$filename = $func->getFileName();
$start_line = $func->getStartLine() - 1; // it's actually - 1, otherwise you wont get the function() block
$end_line = $func->getEndLine();
$length = $end_line - $start_line;

$source = file($filename);
$body = implode("", array_slice($source, $start_line, $length));
print_r($body);

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