PHP怎么向某个IP的某个端口发送一个字节

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Release: 2016-06-13 13:32:13
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PHP如何向某个IP的某个端口发送一个字节?
如题,比如向202.117.120.241的2012端口发送一个字节,字节的8位分别是00100000,该怎样实现?

------解决方案--------------------
$fp = fsoctopen('202.117.120.241', 2012);
fwrite($fp, chr(bindec('00100000')));
------解决方案--------------------
fsocketopen();
------解决方案--------------------
晕啊。。
fsockopen();
------解决方案--------------------

PHP code
$fp = fsockopen('202.117.120.241', 2012, $ercode, $ermsg);
if($ercode !== 0)
    exit ('error:'. $ermsg);
$st = sprintf("%b", 00100000);
fread($fp, $st);
<br><font color="#e78608">------解决方案--------------------</font><br>这是可能由于202.117.120.241这个机子没有监听2012端口。这不是代码的问题造成的。<br>另外我写的<br>$st = sprintf("%b", 00100000); 是错误的。我对二进制字节的理解有误,1楼是正确的 <div class="clear">
                 
              
              
        
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