--- /dev/null
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @see http://github.com/zendframework/zend-diactoros for the canonical source repository
+ * @copyright Copyright (c) 2015-2016 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
+ */
+
+namespace Zend\Diactoros;
+
+/**
+ * Caching version of php://input
+ */
+class PhpInputStream extends Stream
+{
+ /**
+ * @var string
+ */
+ private $cache = '';
+
+ /**
+ * @var bool
+ */
+ private $reachedEof = false;
+
+ /**
+ * @param string|resource $stream
+ */
+ public function __construct($stream = 'php://input')
+ {
+ parent::__construct($stream, 'r');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __toString()
+ {
+ if ($this->reachedEof) {
+ return $this->cache;
+ }
+
+ $this->getContents();
+ return $this->cache;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function isWritable()
+ {
+ return false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function read($length)
+ {
+ $content = parent::read($length);
+ if ($content && ! $this->reachedEof) {
+ $this->cache .= $content;
+ }
+
+ if ($this->eof()) {
+ $this->reachedEof = true;
+ }
+
+ return $content;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getContents($maxLength = -1)
+ {
+ if ($this->reachedEof) {
+ return $this->cache;
+ }
+
+ $contents = stream_get_contents($this->resource, $maxLength);
+ $this->cache .= $contents;
+
+ if ($maxLength === -1 || $this->eof()) {
+ $this->reachedEof = true;
+ }
+
+ return $contents;
+ }
+}