# 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\Mess
没有合适的资源?快使用搜索试试~ 我知道了~
【WordPress插件】2022年最新版完整功能demo+插件v2.7.10 Nulled.zip
共985个文件
php:689个
js:94个
scss:86个
1.该资源内容由用户上传,如若侵权请联系客服进行举报
2.虚拟产品一经售出概不退款(资源遇到问题,请及时私信上传者)
2.虚拟产品一经售出概不退款(资源遇到问题,请及时私信上传者)
版权申诉
0 下载量 113 浏览量
2022-04-06
20:58:02
上传
评论
收藏 3.27MB ZIP 举报
温馨提示
"【WordPress插件】2022年最新版完整功能demo+插件v2.7.10 Nulled PowerPack Elements - Take Elementor to The Next Level PowerPack元素 - 将元素带到一个下一个级别" ---------- 泰森云每天更新发布最新WordPress主题、HTML主题、WordPress插件、shopify主题、opencart主题、PHP项目源码、安卓项目源码、ios项目源码,更有超10000个资源可供选择,如有需要请站内联系。
资源推荐
资源详情
资源评论
收起资源包目录
【WordPress插件】2022年最新版完整功能demo+插件v2.7.10 Nulled.zip (985个子文件)
AUTHORS 285B
openssl.cnf 110B
COPYING 11KB
frontend-rtl.css 388KB
frontend.css 388KB
frontend-rtl.min.css 321KB
frontend.min.css 321KB
pp-woocommerce-rtl.css 100KB
pp-woocommerce.css 100KB
pp-woocommerce-rtl.min.css 87KB
pp-woocommerce.min.css 87KB
hamburgers.css 28KB
hamburgers.min.css 23KB
jquery.fancybox.css 17KB
tablesaw.css 14KB
jquery.fancybox.min.css 14KB
magnific-popup.css 7KB
powerpack-icons.css 6KB
twentytwenty.css 6KB
magnific-popup.min.css 5KB
editor.css 4KB
odometer-theme-default.css 3KB
editor.min.css 3KB
header-layout-rtl.css 1KB
header-layout.css 1KB
header-layout-rtl.min.css 1KB
header-layout.min.css 1KB
Dockerfile 405B
ppicons.eot 60KB
loader.gif 8KB
three.r92.min.js 521KB
jquery.fancybox.js 156KB
twitter-widgets.js 143KB
twitter-widgets.min.js 119KB
tooltipster.js 118KB
isotope.pkgd.js 89KB
slick.js 87KB
frontend.js 72KB
jquery.fancybox.min.js 66KB
tablesaw.jquery.js 55KB
jquery-smartmenu.js 45KB
slick.min.js 42KB
jquery.magnific-popup.js 41KB
isotope.min.js 39KB
tooltipster.min.js 39KB
jquery.countdown.js 36KB
isotope.pkgd.min.js 35KB
frontend.min.js 34KB
vanta.birds.min.js 27KB
pp-templates-lib.js 24KB
particles.min.js 23KB
pp-posts.js 21KB
jquery.magnific-popup.min.js 20KB
pp-woocommerce.js 18KB
jquery.justifiedGallery.min.js 18KB
scotchPanels.js 17KB
pp-toc.js 16KB
pp-login-form.js 14KB
pp-templates-lib.min.js 14KB
jquery.event.move.js 14KB
frontend-countdown.js 13KB
pp-registration-form.js 13KB
pp-bg-effects.js 12KB
tilt.jquery.js 12KB
vanta.net.min.js 12KB
jquery.plugin.js 11KB
vanta.fog.min.js 11KB
pp-posts.min.js 11KB
frontend-devices.js 11KB
frontend-advanced-menu.js 10KB
jquery.min.js 10KB
vanta.waves.min.js 10KB
odometer.min.js 10KB
frontend-countdown.min.js 10KB
pp-woocommerce.min.js 9KB
gruntfile.js 9KB
pp-toc.min.js 9KB
vanta.dots.min.js 9KB
pp-login-form.min.js 8KB
frontend-offcanvas-content.js 8KB
pp-registration-form.min.js 8KB
header-layout.js 8KB
pp-magic-wand.js 7KB
pp-google-maps.js 7KB
frontend-advanced-menu.min.js 7KB
tooltip.min.js 7KB
one-page-nav.js 6KB
pp-bg-effects.min.js 6KB
frontend-devices.min.js 6KB
pp-product-tabs.js 6KB
jquery.resize.js 6KB
frontend-offcanvas-content.min.js 6KB
tilt.jquery.min.js 6KB
pp-advanced-tabs.js 5KB
jquery.twentytwenty.js 5KB
pp-instagram.min.js 4KB
frontend-timeline.js 4KB
pp-magic-wand.min.js 4KB
header-layout.min.js 4KB
pp-custom-cursor.js 4KB
共 985 条
- 1
- 2
- 3
- 4
- 5
- 6
- 10
资源评论
Lee达森
- 粉丝: 969
- 资源: 1万+
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
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