public function getFileContents()
    {
        if ($this->fileContentsCache === null && $filePath = $this->getFile()) {
            if ($filePath === "Unknown" || !is_file($filePath)) {
                return null;
            }

            $this->fileContentsCache = file_get_contents($filePath);
        }

        return $this->fileContentsCache;
    }
public function getFileContents()
    {
        if ($this->fileContentsCache === null && $filePath = $this->getFile()) {
            if ($filePath === "Unknown" || !is_file($filePath)) {
                return null;
            }

            $this->fileContentsCache = file_get_contents($filePath);
        }

        return $this->fileContentsCache;
    }
public function getFileContents ( ) { if ( $ this -> fileContentsCache === null && $ filePath = $ this -> getFile ( ) ) { if ( $ filePath === "Unknown" || ! is_file ( $ filePath ) ) { return null ; } $ this -> fileContentsCache = file_get_contents ( $ filePath ) ; } return $ this -> fileContentsCache ; }
Returns the full contents of the file for this frame, if it's known

@return string|null
Returns the full contents of the file for this frame if it s known