无法在 Symfony 中运行任何进程命令

Question

我正在尝试在 Symfony 5.1 中运行 Linux 进程，如下所述： https: //symfony.com/doc/current/components/process.html

use Symfony\Component\Process\Process;

(...)

$command = 'echo hello';

$process = new Process([$command]);

$process->start();

foreach ($process as $type => $data) {

    if ($process::OUT === $type) {

        echo "\nRead from stdout: ".$data;

    } else { // $process::ERR === $type

        echo "\nRead from stderr: ".$data;

    }

}

无论我的命令行是什么，我都会得到以下输出：

Read from stderr: sh: 1: exec: echo hello: not found

Answer 1

在您提到的文档中，您可以看到示例： https: //symfony.com/doc/current/components/process.html#usage$process = new Process(['ls', '-lsa']);流程构造函数的源代码： https://github.com/symfony/symfony/blob/5.1/src/Symfony/Component/Process/Process.php#L132第一个参数是：* @param array          $command The command to run and its arguments listed as separate entries尽量$process = new Process(['echo', 'hello']);不要$process = new Process(['echo hello']);

Answer 2

也可以简单地使用Process::fromShellCommandline例如$process = Process::fromShellCommandline('echo hello');