还有一个以curl_开头的函数，可以实现很多功能。有时间要好好研究！下面是关于fscokopen的介绍
1.PHP fsockopen函数说明：
Open Internet or Unix domain socket connection（打开套接字链接）
Initiates a socket connection to the resource specified by target .
fsockopen() returns a file pointer which may be used together with the other file functions (such as fgets() , fgetss() , fwrite() , fclose() , and feof() ).就是返回一个文件句柄
开启PHP fsockopen这个函数
PHP fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启。
<ol class="dp-xml">
<li class="alt"><span><span>$</span><span class="attribute">fp</span><span> = </span><span class="attribute-value">fsockopen</span><span>("www.example.com",<br> 80, $errno, $errstr, 30); </span></span></li>
<li><span>if (!$fp) { </span></li>
<li class="alt">
<span>echo "$errstr ($errno)</span><span class="tag"><span class="tag-name">br</span><span> </span><span class="tag">/></span><span>n"; </span></span>
</li>
<li><span>} else { </span></li>
<li class="alt">
<span>$</span><span class="attribute">out</span><span> = </span><span class="attribute-value">"GET / HTTP/1.1rn"</span><span>; </span>
</li>
<li>
<span>$out </span><span class="attribute">.</span><span>= </span><span class="attribute-value">"Host: www.example.comrn"</span><span>; </span>
</li>
<li class="alt">
<span>$out </span><span class="attribute">.</span><span>= </span><span class="attribute-value">"Connection: Closernrn"</span><span>; </span>
</li>
<li><span> </span></li>
<li class="alt"><span>fwrite($fp, $out); </span></li>
<li><span>while (!feof($fp)) { </span></li>
<li class="alt"><span>echo fgets($fp, 128); </span></li>
<li><span>} </span></li>
<li class="alt"><span>fclose($fp); </span></li>
<li><span>} </span></li>
</ol>以上就是PHP fsockopen函数的具体使用方法，供大家参考学习。
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