树型结构列出指定目录里所有文件的PHP类
//以树型结构列出指定目录里的所有文件,如果你想知道自己某个目录里有哪些子目录和文件,可以调用这个类来查看,很方便的。
# 演示的例子:
$t = new TreeClimber( "asp" ); //新建物件,设置需要列出的目录:在此为asp目录
echo arrayValuesToString( $t->getFileList( $t->getPath() ), "
\n" );
function arrayValuesToString( $ar, $nl="", $dolast=true ) {//调用函数
$str = "";
reset( $ar );
$size = sizeof( $ar );
$i = 1;
while( list( $k, $v ) = each( $ar ) ) {
if ( $dolast == false ) {
if ( $i $str .= $ar[$k].$nl;
}
else {
$str .= $ar[$k];
}
}
else {
$str .= $ar[$k].$nl;
}
$i++;
}
return $str;
}
?>
//以下为类文件
class TreeClimber {
var $path;
var $fileList = array();
function TreeClimber( $path = "." ) {
$this->path = $path;
}
# 存取路径
function getPath() { return $this->path; }
function setPath( $v ) { $this->path = $v; }
// 返回指定目录里的文件列表,如果没有指定目录,将使用当前目录
//如果不能打开目录(可能没权限或目录不存在,将返回为空
//以递归方式进行
function getFileList( $dirname=null, $returnDirs=false, $reset=true ) {
if ( $dirname == null ) { $dirname = $this->path; }
# else { $this->setPath( $dirname ); }
# dout( "Recursing into $dirname..." );
if ( $reset ) {
$this->fileList = array();
}
$dir = opendir( $dirname );
if ( ! $dir ) {
print( "注意: TreeClimber.getFileList( $dirname ): 不能打开 $dirname!" );
return null;
}
while( $file = readdir( $dir ) ) {
if ( ereg( "^\.$", $file ) || ereg( "^\.\.$", $file ) ) continue;
if ( is_dir( $dirname."/".$file ) ) {
$this->getFileList( $dirname."/".$file, $returnDirs, false );
if ( $returnDirs ) { $this->fileList[] = $dirname."/".$file;}
}
else { $this->fileList[] = $dirname."/".$file; }
}
sort( $this->fileList );
return $this->fileList;
}
} //至此类结束
?>

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