php中curl异步并发请求http的示例
小编给大家分享一下php中curl异步并发请求http的示例，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
10年积累的成都网站设计、网站制作经验，可以快速应对客户对网站的新想法和需求。提供各种问题对应的解决方案。让选择我们的客户得到更好、更有力的网络服务。我虽然不认识你，你也不认识我。但先网站制作后付款的网站建设流程，更有大祥免费网站建设让你可以放心的选择与我们合作。
先来看下同步的代码以及请求时间。
$start_time=date("h:i:sa");
for ($i=0; $i <100 ; $i++) {
$urls[]="http://www.downxia.com/downinfo/2315".$i.".html";
GetTitle(geturl("http://www.downxia.com/downinfo/2315".$i.".html"));
}
function geturl($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
return $output;
}
function GetTitle($output){
preg_match('/.*<\/title>/i',$output,$matches);
var_dump($matches[0]);
}
$end_time=date("h:i:sa");
echo '开始时间是：'.$start_time;
echo '结束时间是：'.$end_time;</pre><p><img src="/upload/otherpic69/2207.jpg" alt="php中curl异步并发请求http的示例"></p><p>最下面可以看到时间花了27秒。</p><p>接下来看下php curl 异步并发请求http的代码以及花费时间。</p><pre>$start_time=date("h:i:sa");
$urls=[];
for ($i=0; $i <100 ; $i++) {
$urls[]="http://www.downxia.com/downinfo/2315".$i.".html";
}
var_dump($urls);
// GetTitle('klasjdkla<title>313asds12 ');
rolling_curl($urls,'GetTitle');
function GetTitle($output){
preg_match('/.*<\/title>/i',$output,$matches);
var_dump($matches[0]);
}
$end_time=date("h:i:sa");
echo '开始时间是：'.$start_time;
echo '结束时间是：'.$end_time;
function rolling_curl($urls, $callback, $custom_options = null)
{//多个url访问
// make sure the rolling window isn't greater than the # of urls
$rolling_window = 5;
$rolling_window = (sizeof($urls) < $rolling_window) ? sizeof($urls) : $rolling_window;
$master = curl_multi_init();
$curl_arr = array();
// add additional curl options here
$std_options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 5
);
$options = ($custom_options) ? ($std_options + $custom_options) : $std_options;
// start the first batch of requests
for ($i = 0; $i < $rolling_window; $i++) {
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i];
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
}
do {
while (($execrun = curl_multi_exec($master, $running)) == CURLM_CALL_MULTI_PERFORM);
if ($execrun != CURLM_OK) {
break;
}
// a request was just completed -- find out which one
while ($done = curl_multi_info_read($master)) {
$info = curl_getinfo($done['handle']);
if ($info['http_code'] == 200) {
$output = curl_multi_getcontent($done['handle']);
// request successful. process output using the callback function.
$callback($output);
// start a new request (it's important to do this before removing the old one)
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i++]; // increment i
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
// remove the curl handle that just completed
curl_multi_remove_handle($master, $done['handle']);
} else {
// request failed. add error handling.
}
}
} while ($running);
curl_multi_close($master);
return true;
}</pre><p><img src="/upload/otherpic69/2208.jpg" alt="php中curl异步并发请求http的示例"></p><p>才花了3秒？实际上我感觉应该是花了5秒，因为启动比同步要慢，开始的时候卡了2秒。</p><p>http请求效率，毋庸置疑是异步远远高于同步。</p><p>核心请求代码如下：（这是老外写的，有点小问题，最后的提示undefined offset）</p><pre>function rolling_curl($urls, $callback, $custom_options = null)
{//多个url访问
// make sure the rolling window isn't greater than the # of urls
$rolling_window = 5;
$rolling_window = (sizeof($urls) < $rolling_window) ? sizeof($urls) : $rolling_window;
$master = curl_multi_init();
$curl_arr = array();
// add additional curl options here
$std_options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 5
);
$options = ($custom_options) ? ($std_options + $custom_options) : $std_options;
// start the first batch of requests
for ($i = 0; $i < $rolling_window; $i++) {
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i];
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
}
do {
while (($execrun = curl_multi_exec($master, $running)) == CURLM_CALL_MULTI_PERFORM);
if ($execrun != CURLM_OK) {
break;
}
// a request was just completed -- find out which one
while ($done = curl_multi_info_read($master)) {
$info = curl_getinfo($done['handle']);
if ($info['http_code'] == 200) {
$output = curl_multi_getcontent($done['handle']);
// request successful. process output using the callback function.
$callback($output);
// start a new request (it's important to do this before removing the old one)
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i++]; // increment i
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
// remove the curl handle that just completed
curl_multi_remove_handle($master, $done['handle']);
} else {
// request failed. add error handling.
}
}
} while ($running);
curl_multi_close($master);
return true;
}</pre><p>修改一下。只要在新增url的时候加个判断就好了。// 当$i等于$urls数组大小时不用再增加了。</p><pre>function rolling_curl($urls, $callback, $custom_options = null)
{//多个url访问
// make sure the rolling window isn't greater than the # of urls
$rolling_window = 5;
$rolling_window = (sizeof($urls) < $rolling_window) ? sizeof($urls) : $rolling_window;
$master = curl_multi_init();
$curl_arr = array();
// add additional curl options here
$std_options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 5
);
$options = ($custom_options) ? ($std_options + $custom_options) : $std_options;
// start the first batch of requests
for ($i = 0; $i < $rolling_window; $i++) {
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i];
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
}
do {
while (($execrun = curl_multi_exec($master, $running)) == CURLM_CALL_MULTI_PERFORM);
if ($execrun != CURLM_OK) {
break;
}
// a request was just completed -- find out which one
while ($done = curl_multi_info_read($master)) {
$info = curl_getinfo($done['handle']);
if ($info['http_code'] == 200) {
$output = curl_multi_getcontent($done['handle']);
// request successful. process output using the callback function.
$callback($output);
// start a new request (it's important to do this before removing the old one)
// 当$i等于$urls数组大小时不用再增加了
if($i<sizeof($urls)){
$ch = curl_init();
$options[CURLOPT_URL] = $urls[$i++]; // increment i
curl_setopt_array($ch, $options);
curl_multi_add_handle($master, $ch);
}
// remove the curl handle that just completed
curl_multi_remove_handle($master, $done['handle']);
} else {
// request failed. add error handling.
}
}
} while ($running);
curl_multi_close($master);
return true;
}</pre><p>以上是“php中curl异步并发请求http的示例”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注创新互联行业资讯频道！</p>
<br>
当前题目：php中curl异步并发请求http的示例 <br>
网站网址：<a href="http://scjiangan.com/article/pdedjo.html">http://scjiangan.com/article/pdedjo.html</a>
</div>
</div>
<div class="contentr fr">
<h3>其他资讯</h3>
<ul>
<li>
<a href="/article/jdheog.html">jQuery温度计，支持摄氏度华氏度同时展示</a>
</li><li>
<a href="/article/jdheph.html">nginx实现负载CDN加速获取端真实ip的方法</a>
</li><li>
<a href="/article/jdhehg.html">如何解决vue的v-for循环中图片加载路径问题</a>
</li><li>
<a href="/article/jdhido.html">Lombok的功能是什么</a>
</li><li>
<a href="/article/jdhehh.html">64位CentOS6.0下怎么搭建LAMP环境</a>
</li> </ul>
</div>
</div>
</div>
<!--底部-->
<footer>
<div class="foot">
<div class="container">
<h1>江安建站您身边的网站建设服务商</h1>
<div class="foot1">
<ul>
<li>
<dl><i class="iconfont"></i><b>地址ADDRESS</b></dl>
<p>四川-江安青羊区太升南路288号<br>
锦天国际A座10楼
</p>
</li>
<li>
<dl><i class="iconfont"></i><b>电话/TEL</b></dl>
<p><a href="tel:02886922220" target="_blank">028 86922220</a> (工作日)<br>
<a href="tel:18980820575" target="_blank">1898082 0575</a> ( 7x24 )
</p>
</li>
<li>
<dl><i class="iconfont"></i><b>QQ咨询</b></dl>
<p> 244261566 (售前)<br>
631063699 (售后)
</p>
</li>
<li>
<dl><i class="iconfont"></i><b>邮箱/E: mail</b></dl>
<p> service@cdcxhl.com (业务)<br>
hr@cdcxhl.com (求职)
</p>
</li>
</ul>
</div>
<div class="link">
友情链接：
<a href="http://www.jyfdjwx.com/" title="jyfdjwx.com" target="_blank">jyfdjwx.com</a> <a href="http://www.cdxwcx.cn/tuoguan/zigong.html" title="自贡托管服务器" target="_blank">自贡托管服务器</a> <a href="https://www.cdcxhl.com/quanwang.html" title="全网营销推广" target="_blank">全网营销推广</a> <a href="http://www.cxhljz.cn/app/" title="手机APP开发" target="_blank">手机APP开发</a> <a href="http://www.schdas.cn/" title="四川鸿达" target="_blank">四川鸿达</a> <a href="http://www.cdxwcx.cn/tuoguan/bgp.html" title="bgp多线机房托管" target="_blank">bgp多线机房托管</a> <a href="http://www.pzfdjzy.com/" title="攀枝花网站建设" target="_blank">攀枝花网站建设</a> <a href="http://www.scpengxi.com/" title="蓬溪网站建设" target="_blank">蓬溪网站建设</a> <a href="http://www.cdxwcx.cn/tuoguan/xibuxinxi.html" title="成都西信机房托管" target="_blank">成都西信机房托管</a> <a href="http://www.cxhlcq.com/seo/" title="重庆网络营销" target="_blank">重庆网络营销</a> </div>
</div>
</div>
<div class="copy container">
Copyright © 2024 All Rights Reserved. 四川江安网站建设公司 版权所有 <a href="https://beian.miit.gov.cn/" target="_blank" rel="nofollow">蜀ICP备2024080923号-4</a>
[原创设计,独立版权。未经许可.不得拷贝或镜像]<br>
<a href="http://www.kswsj.cn/" target="_blank">网站营销推广</a> | <a href="https://www.cdcxhl.com/pinpai.html" target="_blank">品牌网站设计</a> | <a href="http://www.cdweb.net/" target="_blank">自适应网站建设</a> | <a href="http://cdkjz.cn/wangzhan/pinpai/" target="_blank">品牌网站建设</a> | <a href="http://chengdu.cdxwcx.cn/" target="_blank">成都网站制作</a> | <a href="https://www.cdcxhl.com/cloud/" target="_blank">云服务器</a> | <a href="https://www.cdcxhl.com/weihu/jiangan.html" target="_blank">江安网站维护</a> | (江安网站建设QQ : 631063699 )</div>
</footer>
<!--在线咨询-->
<div class="fot">
<ul>
<li>
<a href="mqqwpa://im/chat?chat_type=wpa&uin=532337155&version=1&src_type=web&web_src=oicqzone.com" target="_blank">
<img src="/Public/Home/img/fot1.png" alt="建站咨询">
<p>在线咨询</p>
</a>
</li>
<li>
<a href="tel:18980820575" target="_blank">
<img src="/Public/Home/img/fot2.png" alt="建站电话">
<p>拨打电话</p>
</a>
</li>
</ul>
</div>
</body>
</html>
<script>
$(".con img").each(function(){
var src = $(this).attr("src"); //获取图片地址
var str=new RegExp("http");
var result=str.test(src);
if(result==false){
var url = "https://www.cdcxhl.com"+src; //绝对路径
$(this).attr("src",url);
}
});
window.onload=function(){
document.oncontextmenu=function(){
return false;
}
}
</script>