doufan3408
doufan3408
2017-04-18 15:05
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已采纳

使用PHP发送TCP数据

I've looked in to this a bit but still don't really understand if its possible.

I have a small webserver that sits on my private network. I want to create a php script that will connect to a telnet server on the private network and send it text every 30 seconds.

Obviously the easy part is the text and timing but connection to a TCP Port 23 and sending a string of text seems harder for some reason. What's the best way to do this?

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1条回答 默认 最新

  • dongyi1015
    dongyi1015 2017-04-18 15:07
    已采纳

    Use PHP sockets :

    <?php
    while(true){
        sleep 30;
        $fp = fsockopen("www.example.com", 23, $errno, $errstr, 30);
        if (!$fp) {
            echo "$errstr ($errno)<br />
    ";
        } else {
            fwrite($fp, "The string you want to send");
            while (fgets($fp, 128)) {
                echo fgets($fp, 128); // If you expect an answer
            }
            fclose($fp); // To close the connection
        }
    }
    ?>
    
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