PHP code statistics tool

The tool is written in PHP and requires the files under the file to be PHP files (that is, files ending with .php). It can count the amount of PHP code in a folder. The code is as follows:

<?php
$filename = "D:/code/";//php代码所在目录
$counts = 0;

function codeCount($filename)
{
    global $counts;
    $total = 0; // 总行数
    $space = 0; // 空行数
    $notes = 0; // 注释
    $handle = fopen($filename, "r");
    $isNotes = false;
    while (! feof($handle)) {
        $line = fgets($handle);
        $total ++;
        if ($isNotes) {
            $notes ++;
            if (preg_match("/.*(\*\/)/", $line)) { // 多行*/注释结束
                $isNotes = false;
            }
            continue;
        }
        if (preg_match("/^[\s]*$/", $line)) { // 空行
            $space ++;
        } elseif (preg_match("/^[\s]*\/\//", $line)) { // 两杠注释
            $notes ++;
        } elseif (preg_match("/^[\s]*(\/\*).*(\*\/)[\s]*$/", $line)) { // 单行注释
            $notes ++;
        } elseif (preg_match("/^[\s]*(\/\*).*/", $line)) { // 多行/*注释开始
            $notes ++;
            $isNotes = true;
        }
    }
    echo "total:" . $total . "\r\n";
    echo "space:" . $space . "\r\n";
    echo "notes:" . $notes . "\r\n";
    echo "<br>";
    $counts += ($total - $space - $notes);
}
if (is_file($filename)) {
    codeCount($filename);
} else 
    if (is_dir($filename)) {
        if ($dh = opendir($filename)) {
            while (($file = readdir($dh)) != false) {
                // 文件名的全路径 包含文件名
                $filePath = $filename . $file;
                // 获取文件修改时间
                if (is_file($filePath)) {
                    codeCount($filePath);
                }
            }
            closedir($dh);
        }
    }
echo "<br>" . $counts;//输出总的代码量
?>



The above has introduced the PHP code statistics tool, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.