<?php
/**
* @see https://github.com/zendframework/zend-diactoros for the canonical source repository
* @copyright Copyright (c) 2015-2017 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;
use function stream_get_contents;
/**
* 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 (! $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;
}
}