如何让步HTTP请求在PHP
https://stackoverflow.com/questions/124462
-
02-07-2019 - |
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有没有办法在PHP让步HTTP的电话？我不关心的回应，我只是想做这样的事情 file_get_contents(), 但不等待请求之前完成执行其余的我的代码。这将是超级用于设置脱"事件"一种在我的应用程序，或者触发的长期进程。
任何想法？
解决方案
我之前接受的答案没有用。它仍在等待回应。这确实有效，取自如何制作一个PHP中的异步GET请求？
function post_without_wait($url, $params)
{
foreach ($params as $key => &$val) {
if (is_array($val)) $val = implode(',', $val);
$post_params[] = $key.'='.urlencode($val);
}
$post_string = implode('&', $post_params);
$parts=parse_url($url);
$fp = fsockopen($parts['host'],
isset($parts['port'])?$parts['port']:80,
$errno, $errstr, 30);
$out = "POST ".$parts['path']." HTTP/1.1\r\n";
$out.= "Host: ".$parts['host']."\r\n";
$out.= "Content-Type: application/x-www-form-urlencoded\r\n";
$out.= "Content-Length: ".strlen($post_string)."\r\n";
$out.= "Connection: Close\r\n\r\n";
if (isset($post_string)) $out.= $post_string;
fwrite($fp, $out);
fclose($fp);
}
其他提示
如果您控制要异步调用的目标（例如，您自己的<！>“; longtask.php <！>”;），则可以从该端关闭连接，并且两个脚本将并行运行。它的工作原理如下：
- quick.php通过cURL打开longtask.php（这里没有魔法）
- longtask.php关闭连接并继续（魔术！）
- cURL在连接关闭时返回quick.php
- 两项任务并行继续
我试过这个，它运作得很好。但是quick.php对于longtask.php的工作方式一无所知，除非你在进程之间创建一些通信方式。
在执行任何其他操作之前，请先在longtask.php中尝试此代码。它将关闭连接，但仍然继续运行（并禁止任何输出）：
while(ob_get_level()) ob_end_clean();
header('Connection: close');
ignore_user_abort();
ob_start();
echo('Connection Closed');
$size = ob_get_length();
header("Content-Length: $size");
ob_end_flush();
flush();
代码复制自 PHP手册的用户提供的备注并有所改善。
这需要php5， 我把它偷出了docs.php.net并编辑了结尾。
我用它来监控客户端网站上发生错误的时间，它会向我发送数据而不会阻止输出
function do_post_request($url, $data, $optional_headers = null,$getresponse = false) {
$params = array(
'http' => array(
'method' => 'POST',
'content' => $data
)
);
if ($optional_headers !== null) {
$params['http']['header'] = $optional_headers;
}
$ctx = stream_context_create($params);
$fp = @fopen($url, 'rb', false, $ctx);
if (!$fp) {
return false;
}
if ($getresponse) {
$response = stream_get_contents($fp);
return $response;
}
return true;
}
你可以通过使用exec（）来调用可以执行HTTP请求的东西，例如wget，但你必须将程序的所有输出都指向某个地方，比如文件或/ dev / null，否则PHP就可以了。进程将等待该输出。
如果你想完全将进程与apache线程分开，请尝试类似的事情（我不确定这一点，但我希望你明白这一点）：
exec('bash -c "wget -O (url goes here) > /dev/null 2>&1 &"');
这不是一个好的业务，你可能想要一个像cron作业调用心跳脚本的东西，该脚本轮询实际的数据库事件队列以执行真正的异步事件。
/**
* Asynchronously execute/include a PHP file. Does not record the output of the file anywhere.
*
* @param string $filename file to execute, relative to calling script
* @param string $options (optional) arguments to pass to file via the command line
*/
function asyncInclude($filename, $options = '') {
exec("/path/to/php -f {$filename} {$options} >> /dev/null &");
}
截至2018年， Guzzle 已成为HTTP请求的事实标准库，用于几个现代框架。它是用纯PHP编写的，不需要安装任何自定义扩展。
它可以很好地进行异步HTTP调用，甚至可以汇集它们例如当您需要进行100次HTTP调用，但不希望一次运行超过5次。
并发请求示例
use GuzzleHttp\Client;
use GuzzleHttp\Promise;
$client = new Client(['base_uri' => 'http://httpbin.org/']);
// Initiate each request but do not block
$promises = [
'image' => $client->getAsync('/image'),
'png' => $client->getAsync('/image/png'),
'jpeg' => $client->getAsync('/image/jpeg'),
'webp' => $client->getAsync('/image/webp')
];
// Wait on all of the requests to complete. Throws a ConnectException
// if any of the requests fail
$results = Promise\unwrap($promises);
// Wait for the requests to complete, even if some of them fail
$results = Promise\settle($promises)->wait();
// You can access each result using the key provided to the unwrap
// function.
echo $results['image']['value']->getHeader('Content-Length')[0]
echo $results['png']['value']->getHeader('Content-Length')[0]
请参阅 http://docs.guzzlephp.org/en/stable /quickstart.html#concurrent-requests
假的请求堕胎的使用
CURL设定一个低CURLOPT_TIMEOUT_MS设置
ignore_user_abort(true)要保持处理的连接之后关闭。
用这种方法不需要实施连接处理通过标题和缓冲区过分依赖于操作系统、浏览器和PHP版本
主进程
function async_curl($background_process=''){
//-------------get curl contents----------------
$ch = curl_init($background_process);
curl_setopt_array($ch, array(
CURLOPT_HEADER => 0,
CURLOPT_RETURNTRANSFER =>true,
CURLOPT_NOSIGNAL => 1, //to timeout immediately if the value is < 1000 ms
CURLOPT_TIMEOUT_MS => 50, //The maximum number of mseconds to allow cURL functions to execute
CURLOPT_VERBOSE => 1,
CURLOPT_HEADER => 1
));
$out = curl_exec($ch);
//-------------parse curl contents----------------
//$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
//$header = substr($out, 0, $header_size);
//$body = substr($out, $header_size);
curl_close($ch);
return true;
}
async_curl('http://example.com/background_process_1.php');
背景的过程
ignore_user_abort(true);
//do something...
NB的
如果你要的卷曲超时在不到一秒，你可以使用 CURLOPT_TIMEOUT_MS，虽然有一个错误/"要素"上的"Unix-like 系统"，原因libcurl超时立即如果价值是 < 1000毫错误"的卷曲的错误(28):超时达成".的 解释这种行为是：
[...]
该方案是禁用的信号使用CURLOPT_NOSIGNAL
资源
您可以使用此库： https://github.com/stil/curl-easy
这很简单：
<?php
$request = new cURL\Request('http://yahoo.com/');
$request->getOptions()->set(CURLOPT_RETURNTRANSFER, true);
// Specify function to be called when your request is complete
$request->addListener('complete', function (cURL\Event $event) {
$response = $event->response;
$httpCode = $response->getInfo(CURLINFO_HTTP_CODE);
$html = $response->getContent();
echo "\nDone.\n";
});
// Loop below will run as long as request is processed
$timeStart = microtime(true);
while ($request->socketPerform()) {
printf("Running time: %dms \r", (microtime(true) - $timeStart)*1000);
// Here you can do anything else, while your request is in progress
}
下面你可以看到上面例子的控制台输出。 它将显示简单的实时时钟，指示请求运行的时间：
让我告诉你我的方式：）
需要在服务器上安装nodejs
（我的服务器发送1000 https get请求仅需2秒）
url.php：
<?
$urls = array_fill(0, 100, 'http://google.com/blank.html');
function execinbackground($cmd) {
if (substr(php_uname(), 0, 7) == "Windows"){
pclose(popen("start /B ". $cmd, "r"));
}
else {
exec($cmd . " > /dev/null &");
}
}
fwite(fopen("urls.txt","w"),implode("\n",$urls);
execinbackground("nodejs urlscript.js urls.txt");
// { do your work while get requests being executed.. }
?>
urlscript.js <！> gt;
var https = require('https');
var url = require('url');
var http = require('http');
var fs = require('fs');
var dosya = process.argv[2];
var logdosya = 'log.txt';
var count=0;
http.globalAgent.maxSockets = 300;
https.globalAgent.maxSockets = 300;
setTimeout(timeout,100000); // maximum execution time (in ms)
function trim(string) {
return string.replace(/^\s*|\s*$/g, '')
}
fs.readFile(process.argv[2], 'utf8', function (err, data) {
if (err) {
throw err;
}
parcala(data);
});
function parcala(data) {
var data = data.split("\n");
count=''+data.length+'-'+data[1];
data.forEach(function (d) {
req(trim(d));
});
/*
fs.unlink(dosya, function d() {
console.log('<%s> file deleted', dosya);
});
*/
}
function req(link) {
var linkinfo = url.parse(link);
if (linkinfo.protocol == 'https:') {
var options = {
host: linkinfo.host,
port: 443,
path: linkinfo.path,
method: 'GET'
};
https.get(options, function(res) {res.on('data', function(d) {});}).on('error', function(e) {console.error(e);});
} else {
var options = {
host: linkinfo.host,
port: 80,
path: linkinfo.path,
method: 'GET'
};
http.get(options, function(res) {res.on('data', function(d) {});}).on('error', function(e) {console.error(e);});
}
}
process.on('exit', onExit);
function onExit() {
log();
}
function timeout()
{
console.log("i am too far gone");process.exit();
}
function log()
{
var fd = fs.openSync(logdosya, 'a+');
fs.writeSync(fd, dosya + '-'+count+'\n');
fs.closeSync(fd);
}
你可以使用不阻止插座和一个pecl扩展PHP:
你可以使用的图书馆给你一个抽象层之间代码和一个pecl扩展： https://github.com/reactphp/event-loop
你也可以使用异步http客户，根据以前的图书馆： https://github.com/reactphp/http-client
看到其他图书馆的ReactPHP: http://reactphp.org
小心有一个异的模型。我让你看到这个视频在youtube上： http://www.youtube.com/watch?v=MWNcItWuKpI
swoole扩展。 https://github.com/matyhtf/swoole 异步<！>放大器; PHP的并发网络框架。
$client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC);
$client->on("connect", function($cli) {
$cli->send("hello world\n");
});
$client->on("receive", function($cli, $data){
echo "Receive: $data\n";
});
$client->on("error", function($cli){
echo "connect fail\n";
});
$client->on("close", function($cli){
echo "close\n";
});
$client->connect('127.0.0.1', 9501, 0.5);
class async_file_get_contents extends Thread{
public $ret;
public $url;
public $finished;
public function __construct($url) {
$this->finished=false;
$this->url=$url;
}
public function run() {
$this->ret=file_get_contents($this->url);
$this->finished=true;
}
}
$afgc=new async_file_get_contents("http://example.org/file.ext");
活动扩展
事件 扩展是非常适当的。这是一个端口 Libevent 库，其目的是为事件驱动的I/O，主要用于网络。
我已经写了一个样品HTTP客户，允许安排一些 HTTP请求并运行它们是异步的。
这是一个样品HTTP客户类的基础上 事件 扩展。
这类允许安排一个HTTP请求数量，然后它们是异步的。
http-client.php
<?php
class MyHttpClient {
/// @var EventBase
protected $base;
/// @var array Instances of EventHttpConnection
protected $connections = [];
public function __construct() {
$this->base = new EventBase();
}
/**
* Dispatches all pending requests (events)
*
* @return void
*/
public function run() {
$this->base->dispatch();
}
public function __destruct() {
// Destroy connection objects explicitly, don't wait for GC.
// Otherwise, EventBase may be free'd earlier.
$this->connections = null;
}
/**
* @brief Adds a pending HTTP request
*
* @param string $address Hostname, or IP
* @param int $port Port number
* @param array $headers Extra HTTP headers
* @param int $cmd A EventHttpRequest::CMD_* constant
* @param string $resource HTTP request resource, e.g. '/page?a=b&c=d'
*
* @return EventHttpRequest|false
*/
public function addRequest($address, $port, array $headers,
$cmd = EventHttpRequest::CMD_GET, $resource = '/')
{
$conn = new EventHttpConnection($this->base, null, $address, $port);
$conn->setTimeout(5);
$req = new EventHttpRequest([$this, '_requestHandler'], $this->base);
foreach ($headers as $k => $v) {
$req->addHeader($k, $v, EventHttpRequest::OUTPUT_HEADER);
}
$req->addHeader('Host', $address, EventHttpRequest::OUTPUT_HEADER);
$req->addHeader('Connection', 'close', EventHttpRequest::OUTPUT_HEADER);
if ($conn->makeRequest($req, $cmd, $resource)) {
$this->connections []= $conn;
return $req;
}
return false;
}
/**
* @brief Handles an HTTP request
*
* @param EventHttpRequest $req
* @param mixed $unused
*
* @return void
*/
public function _requestHandler($req, $unused) {
if (is_null($req)) {
echo "Timed out\n";
} else {
$response_code = $req->getResponseCode();
if ($response_code == 0) {
echo "Connection refused\n";
} elseif ($response_code != 200) {
echo "Unexpected response: $response_code\n";
} else {
echo "Success: $response_code\n";
$buf = $req->getInputBuffer();
echo "Body:\n";
while ($s = $buf->readLine(EventBuffer::EOL_ANY)) {
echo $s, PHP_EOL;
}
}
}
}
}
$address = "my-host.local";
$port = 80;
$headers = [ 'User-Agent' => 'My-User-Agent/1.0', ];
$client = new MyHttpClient();
// Add pending requests
for ($i = 0; $i < 10; $i++) {
$client->addRequest($address, $port, $headers,
EventHttpRequest::CMD_GET, '/test.php?a=' . $i);
}
// Dispatch pending requests
$client->run();
test.php
这是一样的脚本服务器上面。
<?php
echo 'GET: ', var_export($_GET, true), PHP_EOL;
echo 'User-Agent: ', $_SERVER['HTTP_USER_AGENT'] ?? '(none)', PHP_EOL;
使用
php http-client.php
样本输出
Success: 200
Body:
GET: array (
'a' => '1',
)
User-Agent: My-User-Agent/1.0
Success: 200
Body:
GET: array (
'a' => '0',
)
User-Agent: My-User-Agent/1.0
Success: 200
Body:
GET: array (
'a' => '3',
)
...
(调整。)
注意，代码是专为长期处理的 CLI SAPI.
对于定义的协议，可以考虑采用低级API，即 缓冲区的事件, 缓冲区.SSL/TLS通讯，我会推荐的低水平API结合事件的 ssl上下文.实例：
虽然Libevent HTTP API是简单，它不是灵活，因为缓冲区的事件。例如，HTTP API目前不支持的定义HTTP方法。但这是可能实现几乎任何协议使用的低水平。
Ev扩展
我还写了一样的另一个HTTP客户使用 Ev 扩展与 插座 在 非阻挡的模式.代码是稍微更详细的比基于样品的事件，因为评估的一般目的事件循环。它没有提供网络的特定功能，但它的 EvIo 观察者能够收听到的文件描述封装到插座资源，尤其如此。
这是一个样品HTTP客户的基础上 Ev 扩展。
Ev扩展实现一个简单而又强有力的一般目的事件循环。它没有提供的网络特定观察者，但是它的 I/O观察程序 可以使用异步处理的 插座.
以下代码显示如何HTTP请求可以计划为并行处理。
http-client.php
<?php
class MyHttpRequest {
/// @var MyHttpClient
private $http_client;
/// @var string
private $address;
/// @var string HTTP resource such as /page?get=param
private $resource;
/// @var string HTTP method such as GET, POST etc.
private $method;
/// @var int
private $service_port;
/// @var resource Socket
private $socket;
/// @var double Connection timeout in seconds.
private $timeout = 10.;
/// @var int Chunk size in bytes for socket_recv()
private $chunk_size = 20;
/// @var EvTimer
private $timeout_watcher;
/// @var EvIo
private $write_watcher;
/// @var EvIo
private $read_watcher;
/// @var EvTimer
private $conn_watcher;
/// @var string buffer for incoming data
private $buffer;
/// @var array errors reported by sockets extension in non-blocking mode.
private static $e_nonblocking = [
11, // EAGAIN or EWOULDBLOCK
115, // EINPROGRESS
];
/**
* @param MyHttpClient $client
* @param string $host Hostname, e.g. google.co.uk
* @param string $resource HTTP resource, e.g. /page?a=b&c=d
* @param string $method HTTP method: GET, HEAD, POST, PUT etc.
* @throws RuntimeException
*/
public function __construct(MyHttpClient $client, $host, $resource, $method) {
$this->http_client = $client;
$this->host = $host;
$this->resource = $resource;
$this->method = $method;
// Get the port for the WWW service
$this->service_port = getservbyname('www', 'tcp');
// Get the IP address for the target host
$this->address = gethostbyname($this->host);
// Create a TCP/IP socket
$this->socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if (!$this->socket) {
throw new RuntimeException("socket_create() failed: reason: " .
socket_strerror(socket_last_error()));
}
// Set O_NONBLOCK flag
socket_set_nonblock($this->socket);
$this->conn_watcher = $this->http_client->getLoop()
->timer(0, 0., [$this, 'connect']);
}
public function __destruct() {
$this->close();
}
private function freeWatcher(&$w) {
if ($w) {
$w->stop();
$w = null;
}
}
/**
* Deallocates all resources of the request
*/
private function close() {
if ($this->socket) {
socket_close($this->socket);
$this->socket = null;
}
$this->freeWatcher($this->timeout_watcher);
$this->freeWatcher($this->read_watcher);
$this->freeWatcher($this->write_watcher);
$this->freeWatcher($this->conn_watcher);
}
/**
* Initializes a connection on socket
* @return bool
*/
public function connect() {
$loop = $this->http_client->getLoop();
$this->timeout_watcher = $loop->timer($this->timeout, 0., [$this, '_onTimeout']);
$this->write_watcher = $loop->io($this->socket, Ev::WRITE, [$this, '_onWritable']);
return socket_connect($this->socket, $this->address, $this->service_port);
}
/**
* Callback for timeout (EvTimer) watcher
*/
public function _onTimeout(EvTimer $w) {
$w->stop();
$this->close();
}
/**
* Callback which is called when the socket becomes wriable
*/
public function _onWritable(EvIo $w) {
$this->timeout_watcher->stop();
$w->stop();
$in = implode("\r\n", [
"{$this->method} {$this->resource} HTTP/1.1",
"Host: {$this->host}",
'Connection: Close',
]) . "\r\n\r\n";
if (!socket_write($this->socket, $in, strlen($in))) {
trigger_error("Failed writing $in to socket", E_USER_ERROR);
return;
}
$loop = $this->http_client->getLoop();
$this->read_watcher = $loop->io($this->socket,
Ev::READ, [$this, '_onReadable']);
// Continue running the loop
$loop->run();
}
/**
* Callback which is called when the socket becomes readable
*/
public function _onReadable(EvIo $w) {
// recv() 20 bytes in non-blocking mode
$ret = socket_recv($this->socket, $out, 20, MSG_DONTWAIT);
if ($ret) {
// Still have data to read. Append the read chunk to the buffer.
$this->buffer .= $out;
} elseif ($ret === 0) {
// All is read
printf("\n<<<<\n%s\n>>>>", rtrim($this->buffer));
fflush(STDOUT);
$w->stop();
$this->close();
return;
}
// Caught EINPROGRESS, EAGAIN, or EWOULDBLOCK
if (in_array(socket_last_error(), static::$e_nonblocking)) {
return;
}
$w->stop();
$this->close();
}
}
/////////////////////////////////////
class MyHttpClient {
/// @var array Instances of MyHttpRequest
private $requests = [];
/// @var EvLoop
private $loop;
public function __construct() {
// Each HTTP client runs its own event loop
$this->loop = new EvLoop();
}
public function __destruct() {
$this->loop->stop();
}
/**
* @return EvLoop
*/
public function getLoop() {
return $this->loop;
}
/**
* Adds a pending request
*/
public function addRequest(MyHttpRequest $r) {
$this->requests []= $r;
}
/**
* Dispatches all pending requests
*/
public function run() {
$this->loop->run();
}
}
/////////////////////////////////////
// Usage
$client = new MyHttpClient();
foreach (range(1, 10) as $i) {
$client->addRequest(new MyHttpRequest($client, 'my-host.local', '/test.php?a=' . $i, 'GET'));
}
$client->run();
测试
假设 http://my-host.local/test.php 脚本是用打印的倾倒的 $_GET:
<?php
echo 'GET: ', var_export($_GET, true), PHP_EOL;
然后输出的 php http-client.php 命令将类似于以下内容：
<<<<
HTTP/1.1 200 OK
Server: nginx/1.10.1
Date: Fri, 02 Dec 2016 12:39:54 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
X-Powered-By: PHP/7.0.13-pl0-gentoo
1d
GET: array (
'a' => '3',
)
0
>>>>
<<<<
HTTP/1.1 200 OK
Server: nginx/1.10.1
Date: Fri, 02 Dec 2016 12:39:54 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
X-Powered-By: PHP/7.0.13-pl0-gentoo
1d
GET: array (
'a' => '2',
)
0
>>>>
...
(修剪)
请注意，在PHP5 插座 扩展可能会记录的警告 EINPROGRESS, EAGAIN, ， EWOULDBLOCK errno 值。它是可能关闭的日志
error_reporting(E_ERROR);
关于"其余"的代码
我只是想做这样的事情
file_get_contents(), 但不等待请求之前完成执行其余的我的代码。
代码，应该是平行运行的网络，请求可以执行的内回调一个 活动定时器, 或Ev的 空闲的观察程序, 实例。你可以很容易地图出来看看样品。否则，我将增加的另一个例子:)
这是一个工作示例，然后运行它，然后打开storage.txt，检查神奇的结果
<?php
function curlGet($target){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec ($ch);
curl_close ($ch);
return $result;
}
// Its the next 3 lines that do the magic
ignore_user_abort(true);
header("Connection: close"); header("Content-Length: 0");
echo str_repeat("s", 100000); flush();
$i = $_GET['i'];
if(!is_numeric($i)) $i = 1;
if($i > 4) exit;
if($i == 1) file_put_contents('storage.txt', '');
file_put_contents('storage.txt', file_get_contents('storage.txt') . time() . "\n");
sleep(5);
curlGet($_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME'] . '?i=' . ($i + 1));
curlGet($_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME'] . '?i=' . ($i + 1));
当我对任何页面的特定URL进行POST时，这是我自己的PHP函数.... 示例：***使用我的函数...
<?php
parse_str("email=myemail@ehehehahaha.com&subject=this is just a test");
$_POST['email']=$email;
$_POST['subject']=$subject;
echo HTTP_POST("http://example.com/mail.php",$_POST);***
exit;
?>
<?php
/*********HTTP POST using FSOCKOPEN **************/
// by ArbZ
function HTTP_Post($URL,$data, $referrer="") {
// parsing the given URL
$URL_Info=parse_url($URL);
// Building referrer
if($referrer=="") // if not given use this script as referrer
$referrer=$_SERVER["SCRIPT_URI"];
// making string from $data
foreach($data as $key=>$value)
$values[]="$key=".urlencode($value);
$data_string=implode("&",$values);
// Find out which port is needed - if not given use standard (=80)
if(!isset($URL_Info["port"]))
$URL_Info["port"]=80;
// building POST-request: HTTP_HEADERs
$request.="POST ".$URL_Info["path"]." HTTP/1.1\n";
$request.="Host: ".$URL_Info["host"]."\n";
$request.="Referer: $referer\n";
$request.="Content-type: application/x-www-form-urlencoded\n";
$request.="Content-length: ".strlen($data_string)."\n";
$request.="Connection: close\n";
$request.="\n";
$request.=$data_string."\n";
$fp = fsockopen($URL_Info["host"],$URL_Info["port"]);
fputs($fp, $request);
while(!feof($fp)) {
$result .= fgets($fp, 128);
}
fclose($fp); //$eco = nl2br();
function getTextBetweenTags($string, $tagname) {
$pattern = "/<$tagname ?.*>(.*)<\/$tagname>/";
preg_match($pattern, $string, $matches);
return $matches[1];
}
//STORE THE FETCHED CONTENTS to a VARIABLE, because its way better and fast...
$str = $result;
$txt = getTextBetweenTags($str, "span"); $eco = $txt; $result = explode("&",$result);
return $result[1];
<span style=background-color:LightYellow;color:blue>".trim($_GET['em'])."</span>
</pre> ";
}
</pre>
ReactPHP异步http客户端
https://github.com/shuchkin/react-http-client
通过Composer安装
$ composer require shuchkin/react-http-client
异步HTTP GET
// get.php
$loop = \React\EventLoop\Factory::create();
$http = new \Shuchkin\ReactHTTP\Client( $loop );
$http->get( 'https://tools.ietf.org/rfc/rfc2068.txt' )->then(
function( $content ) {
echo $content;
},
function ( \Exception $ex ) {
echo 'HTTP error '.$ex->getCode().' '.$ex->getMessage();
}
);
$loop->run();
在CLI模式下运行php
$ php get.php
嗯，超时可以设置为毫秒， 见<！> quot; CURLOPT_CONNECTTIMEOUT_MS <！> quot;在 http://www.php.net/manual/en/function.curl -setopt
不隶属于 StackOverflow
