Directory iterator for php

* Directory iterator: DirectoryInterator

* Directory recursive iterator: RecursiveDirectoryIterator

* The first way: DirectorInterator:

* The first step: Instantiate the directory Object

* Step 2: Traverse the directory

$dir = new DirectoryIterator('../0416');
foreach ($dir as $file) {
// print $file->getPathname()."<br>";
// print nl2br($file->getPathname()."\n");
//如果不想显示那个./..目录文件,可以做一个判断,只显示普通文件
// if($file->isFile()){  //除./..外,目录文件也会过滤掉
// print $file->getPathname()."<br>";
// }
if(!$file->isDot()){  //仅过滤掉点目录文件,目录仍保留
print $file->getPathname()."<br>";
}
}
echo &#39;<hr>&#39;;

//It is found that the subdirectories are not traversed. In actual development, we often need to obtain all file information

* The second way:

* 1. RecursiveDirectoryIterator recursive directory iterator

* 2. RecursiveIteratorIterator repeated recursive iterator

$dir = new RecursiveDirectoryIterator('../0416');
foreach (new RecursiveIteratorIterator($dir) as $file) {
// print $file->getPathname()."<br>";
if ($file->isFile()) {  //只显示文件     
print $file->getPathname()."<br>";
     }
}
echo &#39;<hr>&#39;;