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 ();
?>