PHP traverses the directory, generates the md5 value of each file in the directory and writes it to the result file

/**
 * @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 );
	}

	/**
 * Traverse the files in the application root directory and generate the corresponding file length and md5 information
 *
 * @param unknown $AppPath
 * The application root directory, such as: xxx/xxx/analytics
 * @param string $destManifestPath
 * The file handle of the storage location of the generated manifest file
*/
	public static function traverse($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 );
	}

	/**
 * Write the md5 information of a file to the file
 *
 * @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 = "tt";
		$content .= '"';
		$content .= $relativePath;
		$content .= '"';
		$content .= ' => array("';
		$content .= $fileSize;
		$content .= '","';
		$content .= $fileMd5;
		$content .= '"),';
		$content .= "n";

		if (! fwrite ( $fileHandle, $content )) {
			print ($filePath . " can not be written!") ;
		}
	}

	/**
 * Write header information in the manifest file
 *
 * @param unknown $fileHandle
*/
	public static function writeMaifestHeader($fileHandle) {
		$header = "		$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." );
		}
	}

	/**
 * Write tail information in the manifest file
 *
 * @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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