PHP中的子进程的任何等价物？

以下是文档中的示例：

<?php
$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_valuen";
}
?>

如果您只需要stdout和stdin,则可以使用popen().

这是我修改过的例子,因为手册很糟糕：

<?php
$handle = popen('/path/to/executable','r');

$lines = [];
while (!feof($handle))
{
    $lines[] = fgets($handle);
}

pclose($handle);

这将把/ path / to / executable的输出读入一行输出行.

你还询问了逃避争论的问题.您可以使用escapeshellarg()执行此操作：

$escapedArg = escapeshellarg($arg);