# 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~
TP房产tpfangchan单城市v2.4_多城市v1.15_新房版开源代码
共2000个文件
php:3830个
jpg:1148个
html:532个
1星 需积分: 50 35 下载量 121 浏览量
2020-09-11
18:24:53
上传
评论 2
收藏 103.92MB ZIP 举报
温馨提示
介绍:TP房产系统又称tpfangchan系统目前有三个系列,分别是单城市标准版,单城市新房版,多城市版 各个系列市场适应人群略有不同,整个系统内核为TP内核,高度的可开发性和可延展性.非常受市场欢迎
资源推荐
资源详情
资源评论
收起资源包目录
TP房产tpfangchan单城市v2.4_多城市v1.15_新房版开源代码 (2000个子文件)
test.bmp 0B
bootstrap.min.css 115KB
style.css 81KB
css.css 71KB
layui.css 59KB
qiniuplayer.min.css 48KB
ueditor.css 44KB
calculator.css 34KB
ueditor.min.css 34KB
video-js.css 21KB
pintuer.css 20KB
swiper.min.css 19KB
swiper.min.css 19KB
prettyPhoto.css 19KB
image.css 19KB
index.css 17KB
video.css 15KB
attachment.css 15KB
layer.css 14KB
layer.css 14KB
user.css 12KB
video-js.min.css 11KB
layui.mobile.css 10KB
blue.1.css 10KB
nv.d3.min.css 9KB
common.css 9KB
red.css 9KB
font.css 9KB
ztree.css 8KB
iconfont.css 8KB
iconfont.css 8KB
pc-color-template.css 8KB
pic-preview.css 8KB
app.css 8KB
color.css 7KB
laydate.css 7KB
shCoreDefault.css 7KB
group.css 7KB
ztree.css 6KB
ztree.css 6KB
members.css 5KB
person.css 5KB
calculator.css 5KB
login.css 4KB
scrawl.css 4KB
form.css 4KB
pink.css 3KB
orange.css 3KB
red.css 3KB
green.css 3KB
demo.css 3KB
shapan.css 3KB
codemirror.css 3KB
charts.css 3KB
mobile-color-template.css 3KB
background.css 2KB
color.css 2KB
component.css 2KB
login.css 2KB
emotion.css 2KB
style.css 2KB
normalize.css 2KB
dialogbase.css 2KB
input.css 2KB
light.css 2KB
music.css 2KB
blue.css 2KB
style.css 2KB
jquery.slide-packer.css 2KB
nprogress.css 2KB
jquery.bigcolorpicker.css 2KB
base.css 1KB
treeselect.css 1KB
laypage.css 1KB
edittable.css 1KB
message.css 1KB
code.css 1KB
template.css 1KB
passStrong.css 877B
reset.css 799B
doc.css 534B
webuploader.css 515B
help.css 395B
default.css 84B
iframe.css 42B
17monipdb.dat 8.13MB
chmod.define 34KB
dashboard.html.dist 7KB
file.html.dist 3KB
TestCaseMethod.tpl.dist 3KB
directory.html.dist 2KB
phpunit.xml.dist 1KB
phpmd.xml.dist 1KB
mocked_class.tpl.dist 1KB
phpunit.xml.dist 987B
file_item.html.dist 871B
phpunit.xml.dist 836B
phpunit.xml.dist 831B
directory_item.html.dist 821B
proxied_method.tpl.dist 716B
共 2000 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
- it驿站2020-10-07此版本是比较旧的版本,冒充新版本来片几分的,请勿上当qq_25684788862021-03-06上当? 要你钱了还是怎么?免费给你的你还说上当 没看到里面多个版本吗
qq_2568478886
- 粉丝: 96
- 资源: 10
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