How to traverse directories in php, example of php non-recursive algorithm for traversing directories

function myscandir($pathname){
foreach( glob($pathname) as $filename ){
if(is_dir($filename)){
myscandir($filename.'/*' );
}else{
echo $filename.'';
}
}
}
myscandir('D:/wamp/www/exe1/*');
?>

2. Method 2

function myscandir($path){
$mydir=dir($path);
while($file=$mydir->read()){
$p=$path .'/'.$file;
if(($file!=".") AND ($file!="..")){
echo $p.'';
}
if( (is_dir($p)) AND ($file!=".") AND ($file!="..")){
myscandir($p);
}
}
}
myscandir(dirname(dirname( __FILE__)));
?>

2. Usage of php directory traversal function opendir

The function of opendir() function: Open the directory handle. If the function runs successfully, it will return a set of directory streams (a set of directory strings). If it fails, it will return an error [error]. You can add "@" at the front of the function to hide the error.

syntax syntax: opendir(directory,context) parameter

Parameter:description

Description: directory required. specifies the directory to stream Required parameters specify the directory object. Optional parameters specify the context of the directory object that needs to be processed. This context includes a set of options that can change the display mode of the text stream.

Code:

$dir = "./";

// open a known directory, and proceed to read its contents
if (is_dir($dir))
{
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false) {
echo "filename: $file : filetype: " . filetype($dir . $file) . "n "."";
}
closedir($dh);
}
}
?>

/**

* PHP non-recursive implementation to query all files in the directory

* @param unknown $dir

* @return multitype:|multitype:string

 return array ();
< ;p> // Compatible with all operating systems
 $dir = rtrim ( str_replace ( '\', '/', $dir ), '/' ) . '/';
 // Stack, the default value is the passed in directory
 $dirs = array ( $dir );
 // Container to place all files
 $rt = array ();
  do {
 // Pop the stack
 $dir = array_pop ( $dirs );
 // Scan the directory
 $tmp = scandir ( $dir );
 foreach ( $tmp as $f ) {
// Filter. ..
if ($f == '.' || $f == '..')
continue;

// Combine the current absolute path
$path = $dir . $f;

// If it is a directory, push it onto the stack.
if (is_dir ( $path )) {
array_push ( $dirs, $path . '/' );
} else if (is_file ( $path )) { // If it is a file, put it in the container
$rt [ ] = $path;
}
 }
 } while ( $dirs ); // Until there is no directory in the stack
 return $rt;
}< ;/p>


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