#include <iostream>#include <string>#include <stdio.h>int exec_cmd(std::string cmd, std::string &res){  if (cmd.size() == 0){  //cmd is empty     return -1;  }  char buffer[1024] = {0};  std::string result = "";  FILE *pin = popen(cmd.c_str(), "r");  if (!pin) { //popen failed     return -1;  }  res.clear();  while(!feof(pin)){    if(fgets(buffer, sizeof(buffer), pin) != NULL){      result += buffer;    }  }  res = result;  return pclose(pin); //-1:pclose failed; else shell ret}int main(){  std::string cmd = "ls -ial";  std::string res;  std::cout << "ret = " << exec_cmd(cmd, res) << std::endl;  std::cout << res << std::endl;  return 0;}

<?php  $cmd = "wc -l ./test.php";  exec($cmd, $output, $code);  echo $code."/n";  print_r($output);?>

import commandsstatus, output = commands.getstatusoutput('ls -lt')print statusprint output