PHP | FilesystemIterator __construct() Function

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
geeks.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(); 
} 

?>