# PSR-7 Message Implementation
This repository contains a full [PSR-7](http://www.php-fig.org/psr/psr-7/)
message implementation, several stream decorators, and some helpful
functionality like query string parsing.
[![Build Status](https://travis-ci.org/guzzle/psr7.svg?branch=master)](https://travis-ci.org/guzzle/psr7)
# Stream implementation
This package comes with a number of stream implementations and stream
decorators.
## AppendStream
`GuzzleHttp\Psr7\AppendStream`
Reads from multiple streams, one after the other.
```php
use GuzzleHttp\Psr7;
$a = Psr7\stream_for('abc, ');
$b = Psr7\stream_for('123.');
$composed = new Psr7\AppendStream([$a, $b]);
$composed->addStream(Psr7\stream_for(' Above all listen to me'));
echo $composed; // abc, 123. Above all listen to me.
```
## BufferStream
`GuzzleHttp\Psr7\BufferStream`
Provides a buffer stream that can be written to fill a buffer, and read
from to remove bytes from the buffer.
This stream returns a "hwm" metadata value that tells upstream consumers
what the configured high water mark of the stream is, or the maximum
preferred size of the buffer.
```php
use GuzzleHttp\Psr7;
// When more than 1024 bytes are in the buffer, it will begin returning
// false to writes. This is an indication that writers should slow down.
$buffer = new Psr7\BufferStream(1024);
```
## CachingStream
The CachingStream is used to allow seeking over previously read bytes on
non-seekable streams. This can be useful when transferring a non-seekable
entity body fails due to needing to rewind the stream (for example, resulting
from a redirect). Data that is read from the remote stream will be buffered in
a PHP temp stream so that previously read bytes are cached first in memory,
then on disk.
```php
use GuzzleHttp\Psr7;
$original = Psr7\stream_for(fopen('http://www.google.com', 'r'));
$stream = new Psr7\CachingStream($original);
$stream->read(1024);
echo $stream->tell();
// 1024
$stream->seek(0);
echo $stream->tell();
// 0
```
## DroppingStream
`GuzzleHttp\Psr7\DroppingStream`
Stream decorator that begins dropping data once the size of the underlying
stream becomes too full.
```php
use GuzzleHttp\Psr7;
// Create an empty stream
$stream = Psr7\stream_for();
// Start dropping data when the stream has more than 10 bytes
$dropping = new Psr7\DroppingStream($stream, 10);
$dropping->write('01234567890123456789');
echo $stream; // 0123456789
```
## FnStream
`GuzzleHttp\Psr7\FnStream`
Compose stream implementations based on a hash of functions.
Allows for easy testing and extension of a provided stream without needing
to create a concrete class for a simple extension point.
```php
use GuzzleHttp\Psr7;
$stream = Psr7\stream_for('hi');
$fnStream = Psr7\FnStream::decorate($stream, [
'rewind' => function () use ($stream) {
echo 'About to rewind - ';
$stream->rewind();
echo 'rewound!';
}
]);
$fnStream->rewind();
// Outputs: About to rewind - rewound!
```
## InflateStream
`GuzzleHttp\Psr7\InflateStream`
Uses PHP's zlib.inflate filter to inflate deflate or gzipped content.
This stream decorator skips the first 10 bytes of the given stream to remove
the gzip header, converts the provided stream to a PHP stream resource,
then appends the zlib.inflate filter. The stream is then converted back
to a Guzzle stream resource to be used as a Guzzle stream.
## LazyOpenStream
`GuzzleHttp\Psr7\LazyOpenStream`
Lazily reads or writes to a file that is opened only after an IO operation
take place on the stream.
```php
use GuzzleHttp\Psr7;
$stream = new Psr7\LazyOpenStream('/path/to/file', 'r');
// The file has not yet been opened...
echo $stream->read(10);
// The file is opened and read from only when needed.
```
## LimitStream
`GuzzleHttp\Psr7\LimitStream`
LimitStream can be used to read a subset or slice of an existing stream object.
This can be useful for breaking a large file into smaller pieces to be sent in
chunks (e.g. Amazon S3's multipart upload API).
```php
use GuzzleHttp\Psr7;
$original = Psr7\stream_for(fopen('/tmp/test.txt', 'r+'));
echo $original->getSize();
// >>> 1048576
// Limit the size of the body to 1024 bytes and start reading from byte 2048
$stream = new Psr7\LimitStream($original, 1024, 2048);
echo $stream->getSize();
// >>> 1024
echo $stream->tell();
// >>> 0
```
## MultipartStream
`GuzzleHttp\Psr7\MultipartStream`
Stream that when read returns bytes for a streaming multipart or
multipart/form-data stream.
## NoSeekStream
`GuzzleHttp\Psr7\NoSeekStream`
NoSeekStream wraps a stream and does not allow seeking.
```php
use GuzzleHttp\Psr7;
$original = Psr7\stream_for('foo');
$noSeek = new Psr7\NoSeekStream($original);
echo $noSeek->read(3);
// foo
var_export($noSeek->isSeekable());
// false
$noSeek->seek(0);
var_export($noSeek->read(3));
// NULL
```
## PumpStream
`GuzzleHttp\Psr7\PumpStream`
Provides a read only stream that pumps data from a PHP callable.
When invoking the provided callable, the PumpStream will pass the amount of
data requested to read to the callable. The callable can choose to ignore
this value and return fewer or more bytes than requested. Any extra data
returned by the provided callable is buffered internally until drained using
the read() function of the PumpStream. The provided callable MUST return
false when there is no more data to read.
## Implementing stream decorators
Creating a stream decorator is very easy thanks to the
`GuzzleHttp\Psr7\StreamDecoratorTrait`. This trait provides methods that
implement `Psr\Http\Message\StreamInterface` by proxying to an underlying
stream. Just `use` the `StreamDecoratorTrait` and implement your custom
methods.
For example, let's say we wanted to call a specific function each time the last
byte is read from a stream. This could be implemented by overriding the
`read()` method.
```php
use Psr\Http\Message\StreamInterface;
use GuzzleHttp\Psr7\StreamDecoratorTrait;
class EofCallbackStream implements StreamInterface
{
use StreamDecoratorTrait;
private $callback;
public function __construct(StreamInterface $stream, callable $cb)
{
$this->stream = $stream;
$this->callback = $cb;
}
public function read($length)
{
$result = $this->stream->read($length);
// Invoke the callback when EOF is hit.
if ($this->eof()) {
call_user_func($this->callback);
}
return $result;
}
}
```
This decorator could be added to any existing stream and used like so:
```php
use GuzzleHttp\Psr7;
$original = Psr7\stream_for('foo');
$eofStream = new EofCallbackStream($original, function () {
echo 'EOF!';
});
$eofStream->read(2);
$eofStream->read(1);
// echoes "EOF!"
$eofStream->seek(0);
$eofStream->read(3);
// echoes "EOF!"
```
## PHP StreamWrapper
You can use the `GuzzleHttp\Psr7\StreamWrapper` class if you need to use a
PSR-7 stream as a PHP stream resource.
Use the `GuzzleHttp\Psr7\StreamWrapper::getResource()` method to create a PHP
stream from a PSR-7 stream.
```php
use GuzzleHttp\Psr7\StreamWrapper;
$stream = GuzzleHttp\Psr7\stream_for('hello!');
$resource = StreamWrapper::getResource($stream);
echo fread($resource, 6); // outputs hello!
```
# Function API
There are various functions available under the `GuzzleHttp\Psr7` namespace.
## `function str`
`function str(MessageInterface $message)`
Returns the string representation of an HTTP message.
```php
$request = new GuzzleHttp\Psr7\Request('GET', 'http://example.com');
echo GuzzleHttp\Psr7\str($request);
```
## `function uri_for`
`function uri_for($uri)`
This function accepts a string or `Psr\Http\Message\UriInterface` and returns a
UriInterface for the given value. If the value is already a `UriInterface`, it
is returned as-is.
```php
$uri = GuzzleHttp\Psr7\uri_for('http://example.com');
assert($uri === GuzzleHttp\Psr7\uri_for($uri));
```
## `function stream_for`
`function stream_for($resource = '', array $options =
没有合适的资源?快使用搜索试试~ 我知道了~
温馨提示
改造聚合影视+聚合直播+在线小说+短视频+在线音乐+电视直播+pc+wap+app+微信【四合一聚合站】 改造聚合影视直播在线小说音乐短视频源码 苹果CMS内核 苹果CMS改造聚合影视直播在线小说音乐短视频源码+pc+wap+app+微信,四合一聚合站 改造聚合影视+聚合直播+在线小说+短视频+在线音乐+电视直播+pc+wap+app+微信 1.后台对接苹果CMS10采集系统 2.聚合直播对接虎牙直播 3.在线小说网站(可换成自己的小说网站) 4.短视频对接梨视频 5.内置在线听全网音乐 6.内置电视直播及明星电影轮播 7.带有播放记录收藏及跳转QQ客服功能 8.增加4个栏目-后台可替换图片标题及跳转地址 9.内置在线更新功能及用户评论功能 10.支持图片启动页及视频启动页(后台设置开关) 11.强制分享无限裂变功能 12.软件捆绑 13.APP弹窗公告 14.可更换主题颜色(8种) 15.更多功能等你体验 改造聚合影视+聚合直播+在线小说+短视频+在线音乐+电视直播+pc+wap+app+微信【四合一聚合站】
资源推荐
资源详情
资源评论
收起资源包目录
改造聚合影视+聚合直播+在线小说+短视频+在线音乐+电视直播+pc+wap+app+微信【四合一聚合站】 (1988个子文件)
H536199F1_1018193519.apk 17.24MB
H536199F1_1018195235.apk 17.24MB
playerconfig.js.bak 561B
test.bmp 0B
daili代码.cde 1KB
maccms.conf 278B
web.config 577B
.confirmed_dependencies 4B
.confusion 2KB
bootstrap.css 139KB
style.css 114KB
style.css 113KB
mui.min.css 95KB
aui.css 63KB
layui.css 58KB
user.css 53KB
ueditor.css 44KB
DPlayer.min.css 43KB
video-js.min.css 37KB
font-awesome.min.css 35KB
ueditor.min.css 34KB
user.css 30KB
videoStyleBlue.css 24KB
home.css 21KB
swiper.min.css 19KB
swiper.min.css 19KB
image.css 19KB
video.css 15KB
nifty.min.css 15KB
attachment.css 15KB
layer.css 14KB
actor.css 12KB
default-skin.css 11KB
admin_style.css 11KB
layui.mobile.css 10KB
member.css 9KB
laydate.css 7KB
minirefresh.css 5KB
photoswipe.css 4KB
iconfont.css 4KB
scrawl.css 4KB
notyf.min.css 3KB
codemirror.css 3KB
icons-extra.css 3KB
yi9sousuo.css 3KB
CYS_superListBox.css 3KB
video.css 3KB
fuli.css 3KB
yi9shoucang.css 3KB
background.css 2KB
zzsc.css 2KB
emotion.css 2KB
normalize.css 2KB
commes.css 2KB
dialogbase.css 2KB
yi9zhibolist.css 2KB
yi9zhibolist2.css 2KB
CYS_animationPopNav.css 1KB
edittable.css 1KB
code.css 1KB
template.css 1KB
yi9lunboQuanping.css 981B
CYS_LevitationNavigation.css 767B
install.css 640B
webuploader.css 515B
CYS_tabBar.css 500B
inftetdowjianjian.css 433B
help.css 395B
bluebird_detailIntro.css 392B
CYS_SuspendedTextNav.css 391B
css.css 266B
zai_tool.css 111B
CYS_primordialVideoPlayer.css 106B
table_td.css 87B
iframe.css 42B
pinyin.dat 103KB
.dependencies 4B
fontawesome-webfont.eot 69KB
iconfont.eot 38KB
hiddeninput.exe 9KB
test.gif 233KB
wface.gif 49KB
jxface2.gif 40KB
yface.gif 28KB
bface.gif 27KB
icons.gif 20KB
file-icons.gif 20KB
file-icons.gif 20KB
tface.gif 19KB
fface.gif 18KB
inputa.gif 13KB
inputa.gif 13KB
video.gif 12KB
noscript.gif 11KB
59.gif 10KB
22.gif 10KB
ui-icon.gif 9KB
ui-icon.gif 9KB
cface.gif 8KB
24.gif 8KB
共 1988 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
YG亲测源码屋
- 粉丝: 448
- 资源: 1700
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功