Update readme and examples

Author: Charlotte Dunois

README.md

@@ -124,7 +124,7 @@ List contents
 -------------
 
 ```php
-$filesystem->dir(__DIR__)->ls()->then(function (\SplObjectStorage $list) {
+$filesystem->dir(__DIR__)->ls()->then(function (array $list) {
    foreach ($list as $node) {
        echo $node->getPath(), PHP_EOL;
    }

examples/directory_create_recursive.php

@@ -13,7 +13,7 @@
 echo 'Creating directory: ' . $dirName, PHP_EOL;
 $dir->createRecursive('rwxrwx---')->then(function () use ($startDir) {
     return $startDir->lsRecursive();
-})->then(function (\SplObjectStorage $list) {
+})->then(function (array $list) {
     foreach ($list as $node) {
         echo $node->getPath(), PHP_EOL;
     }

examples/directory_ls.php

@@ -6,7 +6,7 @@
 
 $filesystem = \React\Filesystem\Filesystem::create($loop);
 echo 'Using ', get_class($filesystem->getAdapter()), PHP_EOL;
-$filesystem->dir(__DIR__ . DIRECTORY_SEPARATOR . 'tmp')->ls()->then(function (\SplObjectStorage $list) {
+$filesystem->dir(__DIR__ . DIRECTORY_SEPARATOR . 'tmp')->ls()->then(function (array $list) {
     foreach ($list as $node) {
         echo get_class($node), ': ', $node->getPath(), PHP_EOL;
     }

examples/directory_ls_recursive.php

@@ -6,7 +6,7 @@
 
 $filesystem = \React\Filesystem\Filesystem::create($loop);
 echo 'Using ', get_class($filesystem->getAdapter()), PHP_EOL;
-$filesystem->dir(dirname(__DIR__))->lsRecursive()->then(function (\SplObjectStorage $list) {
+$filesystem->dir(dirname(__DIR__))->lsRecursive()->then(function (array $list) {
     foreach ($list as $node) {
         echo $node->getPath(), PHP_EOL;
     }

examples/directory_ls_recursive_regexp_interfaces.php

@@ -6,8 +6,10 @@
 
 $filesystem = \React\Filesystem\Filesystem::create($loop);
 echo 'Using ', get_class($filesystem->getAdapter()), PHP_EOL;
-$filesystem->dir(dirname(__DIR__))->lsRecursive()->then(function (\SplObjectStorage $list) {
-    $interfaces = new RegexIterator($list, '/.*?Interface.php$/');
+$filesystem->dir(dirname(__DIR__))->lsRecursive()->then(function (array $list) {
+    $iterator = new ArrayIterator($list);
+    $interfaces = new RegexIterator($iterator, '/.*?Interface.php$/');
+
     foreach ($interfaces as $node) {
         echo $node->getPath(), PHP_EOL;
     }