glob.php

<?php

// get all php files
$files = glob('*.php');
 
print_r($files);
/* output looks like:
Array
(
    [0] => phptest.php
    [1] => pi.php
    [2] => post_output.php
    [3] => test.php
)
*/

// -----------------------------------------------------------------

// get all php files AND txt files
$files = glob('*.{php,txt}', GLOB_BRACE);
 
print_r($files);
/* output looks like:
Array
(
    [0] => phptest.php
    [1] => pi.php
    [2] => post_output.php
    [3] => test.php
    [4] => log.txt
    [5] => test.txt
)
*/

// -------------------------------------------------------

$files = glob('../images/a*.jpg');
 
print_r($files);
/* output looks like:
Array
(
    [0] => ../images/apple.jpg
    [1] => ../images/art.jpg
)
*/

// ---------------------------------------------------------

$files = glob('../images/a*.jpg');
 
// applies the function to each array element
$files = array_map('realpath',$files);
 
print_r($files);
/* output looks like:
Array
(
    [0] => C:\wamp\www\images\apple.jpg
    [1] => C:\wamp\www\images\art.jpg
)
*/