php 遍历目录，生成目录下每个文件的md5值并写入到结果文件中

php 遍历目录，生成目录下每个文件的md5值并写入到结果文件中

实例代码：

<?php /**  * @author Administrator *  */class TestGenerate {  public static $appFolder = "";  public static $ignoreFilePaths = array (    "xxxx/xxx.php"  );  public static function start() {    $AppPath = "E://myApp";    TestGenerate::$appFolder = $AppPath;    $destManifestPath = "E://temp2//dest.md5.txt";         // dest file handle    $manifestHandle = fopen ( $destManifestPath, "w+" );         // write header    TestGenerate::writeMaifestHeader ( $manifestHandle );         // write md5    TestGenerate::traverse ( $AppPath, $manifestHandle );         // write footer    TestGenerate::writeMaifestFooter ( $manifestHandle );         // close file    fclose ( $manifestHandle );  }     /**   * 遍历应用根目录下的文件，并生成对应的文件长度及md5信息   *   * @param unknown $AppPath   *     应用根目录，如：xxx/xxx/analytics   * @param string $destManifestPath   *     生成的manifest文件存放位置的文件句柄   */  public static function traverse($AppPath, $manifestHandle) {    if (! file_exists ( $AppPath )) {      printf ( $AppPath . " does not exist!" );      return;    }    if (! is_dir ( $AppPath )) {      printf ( $AppPath . " is not a directory!" );      return;    }    if (! ($dh = opendir ( $AppPath ))) {      printf ( "Failure while read diectory!" );      return;    }         // read files    while ( ($file = readdir ( $dh )) != false ) {      $subDir = $AppPath . DIRECTORY_SEPARATOR . $file;             if ($file == "." || $file == "..") {        continue;      } else if (is_dir ( $subDir )) {        // rescure        TestGenerate::traverse ( $subDir, $manifestHandle );      } else {        // Sub is a file.        TestGenerate::writeOneFieToManifest ( $subDir, $manifestHandle );      }    }         // close dir    closedir ( $dh );  }     /**   * 写一个文件的md5信息到文件中   *   * @param unknown $filePath        * @param unknown $fileHandle         */  public static function writeOneFieToManifest($filePath, $fileHandle) {    if (! file_exists ( $filePath )) {      continue;    }         $relativePath = str_replace ( TestGenerate::$appFolder . DIRECTORY_SEPARATOR, '', $filePath );    $relativePath = str_replace ( "//", "/", $relativePath );         // ignore tmp directory    if (strpos ( $relativePath, "tmp/" ) === 0) {      return;    }         $fileSize = filesize ( $filePath );    $fileMd5 = @md5_file ( $filePath );         $content = "/t/t";    $content .= '"';    $content .= $relativePath;    $content .= '"';    $content .= ' => array("';    $content .= $fileSize;    $content .= '","';    $content .= $fileMd5;    $content .= '"),';    $content .= "/n";         if (! fwrite ( $fileHandle, $content )) {      print ($filePath . " can not be written!") ;    }  }     /**   * 在manifes文件中写入头信息   *   * @param unknown $fileHandle         */  public static function writeMaifestHeader($fileHandle) {    $header = "<?php";    $header .= "/n";    $header .= "// This file is automatically generated";    $header .= "/n";    $header .= "namespace test;";    $header .= "/n";    $header .= "class MyFile {";    $header .= "/n";    $header .= "/tstatic /$allFiles=array(";    $header .= "/n";         if (! fwrite ( $fileHandle, $header )) {      printf ( "Failure while write file header." );    }  }     /**   * 在manifes文件中写入尾部信息   *   * @param unknown $fileHandle         */  public static function writeMaifestFooter($fileHandle) {    $footer = "/t);";    $footer .= "/n";    $footer .= "}";    $footer .= "/n";         if (! fwrite ( $fileHandle, $footer )) {      printf ( "Failure while write file header." );    }  }} // Start applicationTestGenerate::start (); ?>