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我的 PHP Web 应用程序从流中接收数据。加载页面后,我需要使用or打开.exe文件,并且在短时间内会有新数据出现,因此我必须为此键入特定命令以获取其返回值,我该怎么做?system()exec().exe

我只能在命令提示符下手动执行此操作

path/to/.exe :: hit 'Enter'
command1 params1
//...
4

2 回答 2

1

您正在寻找的是proc_open(). http://php.net/manual/en/function.proc-open.php

这将允许您使用 STDIO 流与单独的进程进行通信。

PHP 文档中的示例:

$descriptorspec = array(
   0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
   1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
   2 => array("file", "/tmp/error-output.txt", "a") // stderr is a file to write to
);

$cwd = '/tmp';
$env = array('some_option' => 'aeiou');

$process = proc_open('php', $descriptorspec, $pipes, $cwd, $env);

if (is_resource($process)) {
    // $pipes now looks like this:
    // 0 => writeable handle connected to child stdin
    // 1 => readable handle connected to child stdout
    // Any error output will be appended to /tmp/error-output.txt

    fwrite($pipes[0], '<?php print_r($_ENV); ?>');
    fclose($pipes[0]);

    echo stream_get_contents($pipes[1]);
    fclose($pipes[1]);

    // It is important that you close any pipes before calling
    // proc_close in order to avoid a deadlock
    $return_value = proc_close($process);

    echo "command returned $return_value\n";
}
于 2012-08-12T09:22:49.087 回答
1

如果您需要多个侦听器,您也可以考虑共享内存,但这种情况听起来您会从使用队列中受益。

文档msg_get_queue, msg_receive,msg_send

例子

// Send
if (msg_queue_exists(12345)) {
  $mqh = msg_get_queue(12345);
  $result = msg_send($mqh , 1, 'data', true);
}

// Receive
$mqh = msg_get_queue(12345, 0666);
$mqst = msg_stat_queue($mqh);
while ($mqst['msg_qnum']) {
  msg_receive($mqh, 0, $msgtype, 2048, $data, true);
  // Spawn your process
  $mqst = msg_stat_queue($mqh);
}

编辑

信号量功能在 Windows 上不可用,正如上面所建议的,您最好的选择是使用popen(单向)或proc_open双向支持。

于 2012-08-12T09:34:52.223 回答