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

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

WBOY

Release： 2016-07-21 15:08:26

Original

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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 "
";
 }
?>