PHP | FilesystemIterator __construct() Function

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The FilesystemIterator::__construct() function is an inbuilt function in PHP which is used to construct a new filesystem iterator.

Syntax:

public FilesystemIterator::__construct( string $path, int $flags )

Parameters: This function accepts two parameters as mentioned above and described below:

$path: This parameter holds the path of the filesystem item.
$flags: This parameter holds the flag which provides the affect and behavior of some methods.

Return Value: This function does not return any value.

Below programs illustrate the FilesystemIterator::__construct() function in PHP:

Program 1:

<?php 
  
// Create new file system iterator 
$fileItr = new FilesystemIterator(dirname(__FILE__)); 
  
// Loop runs for each element of filesystem 
foreach ($fileItr as $file) { 
  
    // Display the filename 
    echo $file->getFilename() . "<br>"; 
} 
?> 

Output:

applications.html
bitnami.css
dashboard
favicon.ico
zambiatek.PNG
gfg.php
img
index.php
Sublime Text Build 3211 x64 Setup.exe
webalizer
xampp

Program 2:

<?php 
  
// Create new file system iterator 
$fileItr = new FilesystemIterator(dirname(__FILE__)); 
  
// Loop runs while file iterator is valid 
while ($fileItr->valid()) { 
  
    // Check for directory files 
    if ($fileItr->isDir()) { 
  
        // Display the file name 
        echo $fileItr->getFilename() . "<br>"; 
    } 
  
    // Move to the next element 
    $fileItr->next(); 
} 
  
?> 