# PSR-7 Message Implementation
This repository contains a full [PSR-7](https://www.php-fig.org/psr/psr-7/)
message implementation, several stream decorators, and some helpful
functionality like query string parsing.
![CI](https://github.com/guzzle/psr7/workflows/CI/badge.svg)
![Static analysis](https://github.com/guzzle/psr7/workflows/Static%20analysis/badge.svg)
# 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\Utils::streamFor('abc, ');
$b = Psr7\Utils::streamFor('123.');
$composed = new Psr7\AppendStream([$a, $b]);
$composed->addStream(Psr7\Utils::streamFor(' 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\Utils::streamFor(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\Utils::streamFor();
// 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\Utils::streamFor('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 zlib (HTTP deflate, RFC1950) or gzipped (RFC1952) content.
This stream decorator 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\Utils::streamFor(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\Utils::streamFor('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\Utils::streamFor('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\Utils::streamFor('hello!');
$resource = StreamWrapper::getResource($stream);
echo fread($resource, 6); // outputs hello!
```
# Static API
There are various static methods available under the `GuzzleHttp\Psr7` namespace.
## `GuzzleHttp\Psr7\Message::toString`
`public static function toString(MessageInterface $message): string`
Returns the string representation of an HTTP message.
```php
$request = new GuzzleHttp\Psr7\Request('GET', 'http://example.com');
echo GuzzleHttp\Psr7\Message::toString($request);
```
## `GuzzleHttp\Psr7\Message::bodySummary`
`public static function bodySummary(MessageInterface $message, int $truncateAt = 120): string|null`
Get a short summary of the message body.
Will return `null` if the response is not printable.
## `GuzzleHttp\Psr7\Message::rewindBody`
`public stat
没有合适的资源?快使用搜索试试~ 我知道了~
温馨提示
基于 Laravel 10 框架:BeikeShop 使用 Laravel 10 框架进行开发,拥有成熟的框架支持 主要面向外贸/跨境电商行业提供商品管理、订单管理、会员管理、支付、物流、系统管理等功能 ; 无佣金和手续费:BeikeShop 没有佣金、年费或手续费,降低了建站成本, 丰富的插件市场:官方提供了丰富的插件市场,可以方便地购买需要的功能, 多语言和多货币支持:系统支持多语言和多货币,方便面向不同地区和国家的用户 界面美观和可视化装修:系统界面设计美观,支持可视化装修,提供良好的用户体验
资源推荐
资源详情
资源评论
收起资源包目录
修复版BeikeShop跨境电商PHP商城源码(中英文) (2000个子文件)
css.css 499KB
bootstrap.css 264KB
index.css 233KB
bootstrap.css 223KB
bootstrap.min.css 160KB
bootstrap.min.css 158KB
app-dark.css 147KB
app.css 146KB
app.css 145KB
app-dark.css 145KB
skin.min.css 60KB
skin.min.css 60KB
app.css 41KB
app.css 26KB
content.min.css 21KB
content.inline.min.css 21KB
content.inline.min.css 21KB
content.min.css 21KB
skin.mobile.min.css 21KB
skin.mobile.min.css 21KB
sweetalert2.min.css 20KB
jquery-ui.min.css 17KB
swiper-bundle.min.css 16KB
design.css 14KB
layer.css 14KB
exception.css 14KB
basic.css 13KB
alabaster.css 11KB
filemanager.css 7KB
layer.css 5KB
pygments.css 5KB
default.css 5KB
cropper.min.css 4KB
htmlDescriptor.css 3KB
exception_full.css 3KB
app.css 2KB
content.min.css 1KB
content.min.css 1KB
content.min.css 1KB
content.min.css 1KB
atom-one-dark.min.css 856B
skin.shadowdom.min.css 764B
skin.shadowdom.min.css 764B
content.mobile.min.css 544B
content.mobile.min.css 544B
ConfigForm.css 301B
error.css 275B
demo.css 199B
demo.css 193B
demo.css 193B
demo.css 193B
demo.css 193B
demo.css 193B
custom.css 42B
.editorconfig 299B
.env 168B
.gitignore 76B
.gitignore 14B
.htaccess 603B
index.html 3KB
search.html 3KB
genindex.html 2KB
index.html 0B
app.js 1.49MB
app.js 1.46MB
vue.global.js 611KB
index.js 574KB
js.js 573KB
emojiimages.js 471KB
vue.js 421KB
emojiimages.min.js 411KB
theme.min.js 399KB
tinymce.min.js 386KB
jquery-3.5.1.js 281KB
emojis.js 253KB
emojis.min.js 193KB
chart.min.js 193KB
theme.min.js 162KB
swiper-bundle.min.js 140KB
plugin.min.js 139KB
highlight.min.js 118KB
vue.min.js 104KB
jquery-3.6.0.min.js 87KB
jquery.js 87KB
jquery-2.1.1.min.js 82KB
bootstrap.bundle.min.js 81KB
bootstrap.bundle.min.js 76KB
icons.min.js 62KB
bootstrap.min.js 61KB
bootstrap.min.js 58KB
marked.min.js 48KB
plugin.min.js 46KB
sweetalert2.min.js 42KB
cropper.min.js 36KB
underscore-1.3.1.js 34KB
jquery.elevateZoom.min.js 32KB
app.js 31KB
el.js 28KB
app.js 28KB
ta_IN.js 28KB
共 2000 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
百创科技
- 粉丝: 1946
- 资源: 243
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
- jdk-23-windows-x64-bin.zip
- jdk-23-windows-x64-bin.exe
- jdk-23-macos-aarch64-bin.tar.gz
- ISSA多策略改进麻雀优化ISSA-CNN-BiLSTM 多输入单输出回归 python代码 优化参数:filter,unint
- comsol仿真 PEM电解槽三维两相流模拟,包括电化学,两相流传质,析氢析氧,化学反应热等多物理场耦合,软件comsol
- cadance 1.8v LDO电路 cadance virtuoso 设计 模拟电路设计 LDO带隙基准电路设计 带设计报告(
- Comsol 三维结构声子晶体禁带及其传输特性
- 机械臂轨迹规划算法,鲸鱼算法优化353多项式,时间最优,鲸鱼优化算法与改进鲸鱼优化算法对比,带约束matlab源码
- MATLAB代码:考虑电动汽车负荷随机性的蓄电池容量优化配置 关键词:蓄电池容量优化配置 储能优化配置 中长期配置 并网波动
- 基于matlab的用于分析弧齿锥齿轮啮合轨迹的程序,输出齿轮啮合轨迹及传递误差 程序已调通,可直接运行 程序保证可直接运行
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