获取用户定义的类和函数的源代码？

Question

有没有一种方法可以获取类或方法的源代码？我正在查看 ReflectionClass，但我没有看到一。

Answer 1

我能想到的最好的办法是：

$class = new ReflectionClass($c);
$fileName = $class->getFileName();
$startLine = $class->getStartLine()-1; // getStartLine() seems to start after the {, we want to include the signature
$endLine = $class->getEndLine();
$numLines = $endLine - $startLine;

if(!empty($fileName)) {
    $fileContents = file_get_contents($fileName);
    $classSource = trim(implode('',array_slice(file($fileName),$startLine,$numLines))); // not perfect; if the class starts or ends on the same line as something else, this will be incorrect
    $hash = crc32($classSource);
}

编辑：这对于像这样定义的类来说效果不佳：

class Foo { }

说这是 2 行长，而它应该只有 1 行...