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<?php $dirs = ['/chris', '/chris/usa', '/david', '/', '/chris/canada/2022', '/david/uk']; $current_path = "/"; $sub_dirs = []; foreach($dirs as $dir) { // Ensure $dir starts with path + '/' (sub dir of $current_path) if (strpos($dir, $current_path) === false) { continue; } // Get the relative path from $current_path $relPath = substr($dir, strlen($current_path)); // Get the first dir of this path [$dir2] = explode('/', ltrim($relPath,'/')); if (empty($dir2)) { continue; } // Store and add removed slash $sub_dirs[] = '/' . $dir2; } var_export(array_unique($sub_dirs));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => '/chris', 2 => '/david', )

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