* // Get lines 10 - 20 of the "routes.php" file
* $lines = $file->snapshot(APP_PATH.'routes'.EXT, 15, 5);
*
*
* @param string $path
* @param int $line
* @param int $padding
* @return array
*/
public function snapshot($path, $line, $padding = 5)
{
if ( ! file_exists($path)) return array();
$file = file($path, FILE_IGNORE_NEW_LINES);
array_unshift($file, '');
$start = $line - $padding;
$length = ($line - $start) + $padding + 1;
return array_slice($file, ($start > 0) ? $start : 0, ($length > 0) ? $length : 0, true);
}
/**
* Get a file MIME type by extension.
*
* Any extension in the MIMEs configuration file may be passed to the method.
*
*
* // Returns "application/x-tar"
* $mime = $file->mime('tar');
*
*
* @param string $extension
* @param string $default
* @return string
*/
public function mime($extension, $default = 'application/octet-stream')
{
$mimes = Config::get('mimes');
if ( ! array_key_exists($extension, $mimes)) return $default;
return (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
}
/**
* Determine if a file is a given type.
*
* The Fileinfo PHP extension will be used to determine the MIME type of the file. Any extension
* in the MIMEs configuration file may be passed as a type.
*
*
* // Determine if the file is a JPG image
* $image = $file->is('jpg', 'path/to/image.jpg');
*
*
* @param string $extension
* @param string $path
* @return bool
*/
public function is($extension, $path)
{
$mimes = Config::get('mimes');
if ( ! array_key_exists($extension, $mimes))
{
throw new \Exception("File extension [$extension] is unknown. Cannot determine file type.");
}
$mime = finfo_file(finfo_open(FILEINFO_MIME_TYPE), $path);
return (is_array($mimes[$extension])) ? in_array($mime, $mimes[$extension]) : $mime === $mimes[$extension];
}
}