In-depth analysis of the method of traversing all files and folders in PHP_PHP Tutorial

1. Method 1:

Copy the code The code is as follows:

< ;?
$dir="D:";
static $dir_list =0;
static $file_list =0;
function listfile($dir){
global $dir_list,$file_list ;
$d = dir($dir);
while ( $entry = $d->read()) {
$tem_curnt=$dir."/".$entry;
if($entry=="." || $entry=="..") continue;
if ( is_dir( $tem_curnt)) {
listfile($tem_curnt);
echo "folder ".$tem_curnt."
";
$dir_list++;
}
elseif ( is_file($tem_curnt)) {
echo "file".$tem_curnt."
";
$file_list++;
}
}
$d->close();
}
listfile($dir);
echo "Number of directories:" .$dir_list;
echo"
";
echo" Number of files: ".$file_list;
?>

2 .Method 2:

Copy code The code is as follows:

function list_dir($dirpath){
if($dirpath[strlen($dirpath)]-1!='/'){
$dirpath.="/";
}
static $result_array =array();
if(is_dir($dirpath)){
$files_dirs=scandir($dirpath);
foreach($files_dirs as $file){
if($file== '.'||$file=='..'){continue;}
if(is_dir($dirpath.$file)){
list_dir($dirpath.$file);
}else {
array_push($result_array,$dirpath.$file);
}
}
}
return $result_array;
}
$array=list_dir('D: /www');
foreach($array as $value){
echo $value;
echo "
";
}
?>

3. Method three:

Copy the code The code is as follows:

function list_dir($dirpath){
if($dirpath[strlen($dirpath)-1]!="//"){$dirpath.="//"; }
static $result_array=array();
if(is_dir($dirpath)){
$handle=opendir($dirpath);
while($file=readdir($handle)) {
if($file=="."||$file==".."){continue;}
if(is_dir($dirpath.$file)){
list_dir($dirpath .$file."//");
}else{
array_push($result_array,$dirpath.$file);
}
}
closedir($handle);
}
return $result_array;
}
$array=list_dir("D:/www");
foreach($array as $value){
echo $value;
echo "
";
}
?>

4. Method 4:

Copy code The code is as follows:

function list_dir($dirpath){
if($dirpath[strlen ($dirpath)-1]!="//"){$dirpath.="//";}
static $result_array=array();
if(is_dir($dirpath)){
$dir=dir($dirpath);
while($file=$dir->read()){
if($file=="."||$file==".." ){continue;}
if(is_dir($dirpath.$file)){
list_dir($dirpath.$file."//");
}else{
array_push($result_array ,$dirpath.$file);
}
}
$dir->close();
}
return $result_array;
}
$array=list_dir ("D:/www");
foreach($array as $value){
echo $value;
echo "
";
}
?>

http://www.bkjia.com/PHPjc/327479.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/327479.htmlTechArticle1. Method 1: Copy the code as follows: ? $dir="D:"; static $dir_list =0 ; static $file_list =0; function listfile($dir){ global $dir_list,$file_list; $d = dir($dir); while ( $ent...