我需要用进程组件执行许多命令。

$commands = [
                ["mkdir", "-p", path)],
                ["cd", path],
                ["rm", "-f", $archiveName, $sqlDbName . '.sql'],
                [$this->dumpCommand($sqlDbName)],
                ["tar", "zcfP", $archiveName, $sqlDbName . '.sql'],
                ["rm", "-f", $sqlDbName . ".sql"],
           ];

foreach ($commands as $command) {
    $process = new Process($command);
    $process->run();
    return $process->getOutput();
}

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我认为只有第一个命令起作用。我没有错误。有人知道为什么吗？