Recursive glob search in php

glob_recursive.php

/*
 * License: DWTFYW
 */

function glob_recursive($base, $pattern, $flags = 0) {
	if (substr($base, -1) !== DIRECTORY_SEPARATOR) {
		$base .= DIRECTORY_SEPARATOR;
	}

	$files = glob($base.$pattern, $flags);
	if ($files === false) {
		$files = [];
	}
	
	foreach (glob($base.'*', GLOB_ONLYDIR|GLOB_NOSORT|GLOB_MARK) as $dir) {
		$dirFiles = glob_recursive($dir, $pattern, $flags);
		if ($dirFiles !== false) {
			$files = array_merge($files, $dirFiles);
		}
	}

	return $files;
}

I add an extra line after line 10 as glob can return false, and your later array_merge should be fed an array. You catch the possible false return later on line 14, so that's good.

	$files = glob($base.$pattern, $flags);
	$files = $files !== false ? $files : [];

I updated it, thanks! 💯

function glob_recursive(string $baseDir, string $pattern, int $flags = 0)
{
    $flags |= GLOB_BRACE;
    $paths = glob(rtrim($baseDir, '\/') . DIRECTORY_SEPARATOR . $pattern, $flags);
    if ($paths) {
    	foreach ($paths as $path) {
           if (is_dir($path)) {
                $subPaths = (__FUNCTION__)($path, $pattern, $flags);
                if ($subPaths) {
                    array_push($paths, ...$subPaths);
                }
           }
    	}
    }
    return $paths;
}