sudo find /private/etc -exec ls -l {} /; | awk BEGIN {sum=0} {sum+=$5;} END {print sum} # 4947228ls -ld /etc #/etc - private/etc

先計(jì)算出/etc目錄所有文件的大小4947228

DirUtil.php

 ?php * Created by PhpStorm. * User: Mch * Date: 8/14/18 * Time: 22:11html' target='_blank'>class DirUtil { public static function getSize(string $path) { $totalSize = 0; $path = realpath($path); if (!file_exists($path)) { return $totalSize; if (!is_dir($path)) { return filesize($path); if ($dh = opendir($path)) { while (($file = readdir($dh)) !== false) { if ($file !== . $file !== .. ) { $abs = $path.DIRECTORY_SEPARATOR.$file; if (is_dir($file)) { $totalSize += self::getSize($abs); } else { $totalSize += filesize($abs); closedir($dh); return $totalSize; public static function entryForEach(string $path, callable $callback, mixed $data = null) { $path = realpath($path); if (!file_exists($path)) { return 0; if (!is_dir($path)) { return call_user_func($callback, $path, $data); if ($dh = opendir($path)) { while (($file = readdir($dh)) !== false) { if ($file !== . $file !== .. ) { $abs = $path.DIRECTORY_SEPARATOR.$file; if (is_dir($file)) { self::entryForEach($abs, $callback, $data); } else { call_user_func($callback, $abs, $data); closedir($dh); return 0; public static function entryReduce(string $path, callable $callback, $init) { $acc = $init; $path= realpath($path); if (!file_exists($path)) { return $acc; if (!is_dir($path)) { return call_user_func($callback, $acc, $path); if ($dh = opendir($path)) { while (($file = readdir($dh)) !== false) { if ($file !== . $file !== .. ) { $abs = $path.DIRECTORY_SEPARATOR.$file; if (is_dir($file)) { $acc = self::entryReduce($abs, $callback, $acc); } else { $acc= call_user_func($callback, $acc, $abs); closedir($dh); return $acc;}

test:

// php ./DirUtil.php /etcif ($argc 2) { printf( Usage: php %s [filename]/n , __FILE__); exit(1);echo DirUtil::getSize($argv[1]).PHP_EOL; // 899768$dir_get_size = function($path) { $size = 0; DirUtil::entryForEach($path, function($path) use ( $size) { $size += filesize($path); return $size;echo $dir_get_size($argv[1]).PHP_EOL; // 899768echo DirUtil::entryReduce($argv[1], function($sum, $path) { $sum += filesize($path); return $sum;}, 0).PHP_EOL; // 899768

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以上就是php如何使用遞歸來(lái)計(jì)算一個(gè)目錄中所有文件的大小 （代碼）的詳細(xì)內(nèi)容，PHP教程

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