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PHP | DirectoryIterator __toString() Function
  • Last Updated : 26 Nov, 2019

The DirectoryIterator::__toString() function is an inbuilt function in PHP which is used to return the file name of the current DirectoryIterator item.

Syntax:

string DirectoryIterator::__toString( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the file name of the current DirectoryIterator item.

Below programs illustrate the DirectoryIterator::__toString() functio in PHP:



Program 1:




<?php
  
// Create a directory Iterator
$directory = new DirectoryIterator(dirname(__FILE__));
  
// Loop runs while directory element is valid
while ($directory->valid()) {
      
    // Display the filename in string format
    echo $directory->__toString() . "<br>";
  
    // Move to the next element
    $directory->next();
}
  
?>

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 a directory Iterator
$directory = new DirectoryIterator(dirname(__FILE__));
  
// Loop runs for each element of directory
foreach($directory as $dir) {
      
    // Display the key and filename
    echo $directory->key() . " => " .
    $directory->__toString() . "<br>";
}
  
?>

Output:

0 => .
1 => ..
2 => applications.html
3 => bitnami.css
4 => dashboard
5 => favicon.ico
6 => geeks.PNG
7 => gfg.php
8 => img
9 => index.php
10 => Sublime Text Build 3211 x64 Setup.exe
11 => webalizer
12 => xampp

Note: The output of this function depends on the content of server folder.

Reference: https://www.php.net/manual/en/directoryiterator.tostring.php




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