PHP统计代码行数的小代码

<?php
/**
 * Created by PhpStorm.
 * User: luyanfeng
 * Date: 16/7/12
 * Time: 下午1:45
 */
 
/**
 * @param $dir
 * @return int
 */
function countLine($dir)
{
 $count = 0;
 if (is_dir($dir)) {
 $files = scandir($dir);
 foreach ($files as $file) {
 if ($file[0] == '.') continue;
 $file = $dir . "/" . $file;
 if (is_dir($file)) {
 $count += countLine($file . "/");
 } else {
 if (strpos($file, ".php"))
  $count += count(file($file));
 }
 }
 } else {
 $count += count(file($dir));
 }
 return $count;
}
 
if (count($argv) < 2) {
 echo "lack params\n";
 die;
}
$dir = $argv[1];
echo countLine($dir) . "\n";