php遍歷目錄，生成目錄下每個文件的md5值并寫入到結果文件中

<?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 );

}
/**

遍歷應用根目錄下的文件，并生成對應的文件長度及md5信息
*
@param unknown $AppPath
應用根目錄，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 );
}
/**

寫一個文件的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文件中寫入頭信息
*
@param unknown $fileHandle

*/
public static function writeMaifestHeader($fileHandle) {
 $header = "<?php";
 $header .= "\n";
 $header .= "http:// 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文件中寫入尾部信息
*
@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 ();
?></pre>