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cURL响应HTML以纯文本形式而不是呈现的HTML回显(cURL response HTML is echoed as plain text instead of rendered HTML)

 我正在发布一个使用PHP curl返回HTML的API端点。 当我回显响应时，它以纯文本形式打印，而不是以HTML格式呈现。  
 标题是正确的，因为如果我回显一串HTML，它会正常呈现。  
 有关如何使其渲染的任何想法？  
$url = 'https://inlinestyler.torchbox.com/styler/convert/';
$myvars = 'source_url=XXXXXXXXXX&returnraw=1';

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_POST, 1);
curl_setopt( $ch, CURLOPT_POSTFIELDS, $myvars);
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt( $ch, CURLOPT_HEADER, 0);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1);

$content = curl_exec( $ch );

// Plaintext
echo $content;

// Shows HTML
echo '<h1>Testing</h1>';

I'm POST-ing to an API endpoint that returns HTML using PHP curl. When I echo the response, it prints as plain text instead of rendering as HTML.  
The headers are correct because if I echo a string of HTML, it renders normally.  
Any ideas on how to make it render instead?  
$url = 'https://inlinestyler.torchbox.com/styler/convert/';
$myvars = 'source_url=XXXXXXXXXX&returnraw=1';

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_POST, 1);
curl_setopt( $ch, CURLOPT_POSTFIELDS, $myvars);
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt( $ch, CURLOPT_HEADER, 0);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1);

$content = curl_exec( $ch );

// Plaintext
echo $content;

// Shows HTML
echo '<h1>Testing</h1>';

原文：https://stackoverflow.com/questions/37308973

更新时间：2021-08-14 10:08

最满意答案

 在实际考虑通过我自己的手腕咀嚼和整夜梦见IPs之后+蛮力搜索/尝试任何我可以得到我的数字手指，我设法把实际上工作的东西放在一起。 我不知道技术上的原因，所以如果你能提供设置解释，请这样做！ ：d  
 PS：解释中的所有内容都是通过命令行完成的  
 PS：这不是最终的解决方案，但它是回答我自己的问题的工作方案。  
 这里是：  
 步骤1：必须在框上启用IP转发：  
vim /etc/sysctl.conf
 
 //找到并取消注释以下内容  
net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter=1
 
 第2步：添加循环返回规则（这更适用于涵盖所有端口的情况，显然许多应用程序都需要它？  
iptables -I INPUT -i lo -j ACCEPT
 
 第3步。为旁路端口443添加规则：（eth1是Internet接口，xxxx / eth0是LAN接口）  
iptables -t filter -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT

iptables -t filter -A FORWARD -i eth0 -p tcp --dport 443 -j ACCEPT

iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to-source x.x.x.x
 
 第4步。最后，使Squid透明的规则：（xxxx是LAN接口的IP）  
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j DNAT --to-destination x.x.x.x:3128

iptables -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128

After actually considering chewing through my own wrists and dreaming of IPs all night long + brute force googling/trying ANYTHING i could get my digital fingers on i managed to put something together that actually works. I dont know the technical reasons why, so if you can provide set explanations please do so! :D 
PS: everything in the explanation is done via command line 
PS: this is not a final solution, but its a working one in answer to my own question. 
Here it is: 
Step 1: Had to enable IP Forwarding on the box: 
vim /etc/sysctl.conf
 
//find and uncomment the following 
net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter=1
 
Step 2: Add loop back rule (this is more for when all ports are covered, apparently many apps need it? 
iptables -I INPUT -i lo -j ACCEPT
 
Step 3. Add rules for the bypassing of port 443: (eth1 is internet interface and x.x.x.x/eth0 is LAN interface) 
iptables -t filter -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT

iptables -t filter -A FORWARD -i eth0 -p tcp --dport 443 -j ACCEPT

iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to-source x.x.x.x
 
Step 4. Then finally the rules making Squid transparent:(x.x.x.x is IP of LAN interface) 
iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j DNAT --to-destination x.x.x.x:3128

iptables -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128

cURL响应HTML以纯文本形式而不是呈现的HTML回显(cURL response HTML is echoed as plain text instead of rendered HTML)

最满意答案

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