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/***@authorA

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 application
TestGenerate::start ();
 
?>

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