在 PHP 中读取 COM(串行调制解调器)

问题描述

在 PHP 中读取 COM(串行调制解调器)

我需要一个 COM 接口(Windows、COM2)来使用 PHP 读取.

这个演示正在进行中.阅读是一个问题，它有时会运行.

有没有其他方法(没有 dio，没有 C++)也许 w32api_register_function() 更好?

函数 rs232init($com,$bautrate){`mode $com: BAUD=$bautrate PARITY=N data=8 stop=1 xon=off`;}函数发送($comport，$char){$fp = fopen("$comport", "w+");如果 (!$fp){echo "未打开读取";}别的 {fputs ($fp, $char);fclose ($fp);}}函数读取($comport2，$sek){$buffer = "";$fp2 = fopen("$comport2", "r+");如果 (!$fp2){echo "端口已开放读取";}别的{睡眠($sek)；$buffer .= fgets($fp2, 4096);}返回 $buffer;fclose ($fp2);}rs232init("com2","9600");发送(com2"，3")；$a = read("com2","2");回声 $a;

解决方案

com2 设备应该被引用为 'COM2:'

Reading COM (Serial Modem) in PHP

I'd need a COM interface (Windows,COM2) to read with PHP.

This Demo is going on.Reading is a problem, it's running sometimes.

Is there an other way (no dio,no C++) maybe w32api_register_function() is better?

    function rs232init($com,$bautrate)
    {
    `mode $com: BAUD=$bautrate PARITY=N data=8 stop=1 xon=off`;
    }

    function send($comport,$char)
    {

         $fp = fopen ("$comport", "w+");
         if (!$fp)
          {
             echo "not open for read";
          }
        else {
                fputs ($fp, $char);
                 fclose ($fp);
                }
    }

    function read($comport2,$sek)
    {

       $buffer = "";

       $fp2 = fopen ("$comport2", "r+");
         if (!$fp2)
         {
       echo "port is open for read";
       }
    else
      {
      sleep($sek);
             $buffer .= fgets($fp2, 4096);
            }
          return $buffer;
          fclose ($fp2);
}


rs232init("com2","9600");
send("com2","3"); 
$a = read("com2","2"); 
echo $a; 

解决方案

The com2 device should be referenced as 'COM2:'

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