使用PHP执行DalekJS不起作用

时间:2014-08-18 12:10:00

标签: php exec dalekjs

我使用测试框架DalekJS来测试用户界面。要执行我的测试脚本mytest.js,我输入shell:

cd /Applications/XAMPP/xamppfiles/htdocs/tests
dalek mytest.js

它工作正常。现在我想用PHP执行相同的脚本。我的代码:

<?php
chdir('/Applications/XAMPP/xamppfiles/htdocs/tests');
$command = 'dalek mytest.js';
exec($command, $return, $return_var);
var_dump($return);
var_dump($return_var);

在浏览器中运行我的PHP脚本,它会打印:

array(0) { } int(127) 

DalekJS脚本在shell中执行时会生成一个屏幕截图,但是在PHP上运行它不会发生任何事情。我也尝试过shell_exec(),system()和passthru()但没有成功。 你知道为什么PHP脚本不起作用吗?

1 个答案:

答案 0 :(得分:1)

从PHP调用dalek对我来说很好。您的PHP进程是否可能使用与您的用户不同的环境(包含PATH等)?也许apache用户或其他一些人?

<?php

// change current working directory of the current PHP process,
// this will subsequently change the initial CWD of exec()
$whereMyTestsAre = __DIR__;
chdir($whereMyTestsAre); 

// locate dalek
$dalek = exec('which dalek');

// abort if there is no dalek,
// you may want to check PATH or supply the full path yourself
if (!$dalek) {
  echo "could not find dalek executable, please check your path";
  $PATH = exec('echo $PATH');
  echo '$PATH is ', $PATH, "\n";
  exit(1);
}

// relative to $whereMyTestsAre
// exec() blocks until the child process (dalek) exits
exec('dalek mytest.js');