kenjis / ci-phpunit-test

			if ( ! ini_get('safe_mode') && function_usable('shell_exec'))

			{

				$mime = @shell_exec($cmd);

				if (strlen($mime) > 0)

				{

					$mime = explode("\n", trim($mime));

					if (preg_match($regexp, $mime[(count($mime) - 1)], $matches))

					{

						$this->file_type = $matches[1];

						return;

					}

				}

			}

			if (function_usable('popen'))

				{

					$mime = @fread($proc, 512);

					@pclose($proc);

					if ($mime !== FALSE)

					{

						$mime = explode("\n", trim($mime));

						if (preg_match($regexp, $mime[(count($mime) - 1)], $matches))

						{

							$this->file_type = $matches[1];

							return;

						}

					}

				}

			}

		}