How to get the file name under a folder?

Question

Suppose I have a directory look like:

ABC
|_ a1.txt
|_ a2.txt
|_ a3.txt
|_ a4.txt
|_ a5.txt

How can I use PHP to get these file names to an array, limited to a specific file extension and ignoring directories?

Answer 1

You can use the glob() function:

Example 01:

<?php
  // read all files inside the given directory
  // limited to a specific file extension
  $files = glob("./ABC/*.txt");
?>

Example 02:

<?php
  // perform actions for each file found
  foreach (glob("./ABC/*.txt") as $filename) {
    echo "$filename size " . filesize($filename) . "\n";
  }
?>

Example 03: Using RecursiveIteratorIterator

<?php 
foreach(new RecursiveIteratorIterator( new RecursiveDirectoryIterator("../")) as $file) {
  if (strtolower(substr($file, -4)) == ".txt") {
        echo $file;
  }
}
?>

Answer 2

Try this:

if ($handle = opendir('.')) {
    $files=array();
    while (false !== ($file = readdir($handle))) {
        if(is_file($file)){
            $files[]=$file;
        }
    }
    closedir($handle);
}