Recursive File Search (PHP)

Question

I\'m trying to return the files in a specified directory using a recursive search. I successfully achieved this, however I want to add a few lines of code that will allow me

Answer 1

Try this, it uses an array of allowed file types and only echos out the file if the file extension exists within the array.

<?php
$it = new RecursiveDirectoryIterator("L:\folder\folder\folder");
$allowed=array("pdf","txt");
foreach(new RecursiveIteratorIterator($it) as $file) {
    if(in_array(substr($file, strrpos($file, '.') + 1),$allowed)) {
        echo $file . "<br/> \n";
    }
}
?>

You may also find that you could pass an array of allowed file types to your RecursiveDirectoryIterator class and only return files that match.

Answer 2

None of these worked for my case. So i wrote this function, not sure about efficiency, I just wanted to remove some duplicate photos quickly. Hope it helps someone else.

function rglob($dir, $pattern, $matches=array())
{
    $dir_list = glob($dir . '*/');
    $pattern_match = glob($dir . $pattern);

    $matches = array_merge($matches, $pattern_match);

    foreach($dir_list as $directory)
    {
        $matches = rglob($directory, $pattern, $matches);
    }

    return $matches;
}

$matches = rglob("C:/Bridge/", '*(2).ARW');

Only slight improvement that could be made is that currently for it to work you have to have a trailing forward slash on the start directory.