Question

我遇到的问题是我似乎无法使用从请求调用的JS文件中传回原始PHP文件的结果。这是结果和处理程序：

if(creds_verification() == true){
        $.ajax({
        url:"scripts/scripts.php", //the page containing php script
        type: "post", //request type,
        dataType: 'json',
        data: {url: URL, user: USER, password: PASS},
        success:function(result){
            var verdict = result
            if(verdict == "Yes"){
               Call another external function 
            }else{
            console.log(results.abc)
         }
       }
     });
    }

控制台不断打印“是”，也就是results.abc的结果...为什么会发生这种情况？它应该执行下一个功能...

添加了信息 运行shell命令的PHP脚本和echo结果：

scripts.php

    <?php  
$URL = $_POST['url'];
$USER = $_POST['user'];
$PASSWORD = $_POST['password'];

echo json_encode(array("abc" => shell_exec("PATH.../phantomjs PATH/phantom/examples/test.js 2>&1 $URL $USER $PASSWORD")));
?>

这是从shell命令调用的JS文件：

test.js

var system = require('system')
var page = require('webpage').create()
var script = document.createElement('script');
script.src = 'http://code.jquery.com/jquery-1.11.0.min.js';
script.type = 'text/javascript';
document.getElementsByTagName('head')[0].appendChild(script);
var URL = system.args[1]
var USER = system.args[2]
var PASS = system.args[3]
var steps = [
  function() {
    page.open('http://'+URL+'/login.html')
  },
  function() {
    page.evaluate(function(USER, PASS) {
      document.querySelector('input[name="log"]').value = USER
    document.querySelector('input[name="pwd"]').value = PASS
    document.querySelector('form').submit()
    }, USER, PASS)
  },
function(){
     var newURL = page.url
     if(newURL == 'http://'+URL+'/user.html'){
      console.log('Yes')
     }else{
      console.log('No?')
     }
}
]
var stepindex = 0
var loading = false

setInterval(executeRequestsStepByStep, 5000)

function executeRequestsStepByStep(){
  if (loading == false && steps[stepindex]) {
    steps[stepindex]()
    stepindex++
  }
  if (!steps[stepindex]) {
    phantom.exit()
  }
}
page.onLoadStarted = function() { loading = true }
page.onLoadFinished = function() { loading = false }

Answer 1

这是因为您在服务器上调用的代码（这意味着scripts/scripts.php的结果）而不是返回＆＃39;是＆＃39;因此结果是“是”＆＃39;在返回对象的abc属性中。

将php代码更改为：

<?php  
$URL = $_POST['url'];
$USER = $_POST['user'];
$PASSWORD = $_POST['password'];

$res = shell_exec("PATH.../phantomjs PATH/phantom/examples/test.js 2>&1 $URL $USER $PASSWORD");
echo json_encode($res == 'Yes' ? $res : array("abc"=>$res));
?>

如果test.js的结果只是＆＃34;是＆＃34;

修改或＆＃34;否＆＃34;然后将PHP更改为

<?php  
$URL = $_POST['url'];
$USER = $_POST['user'];
$PASSWORD = $_POST['password'];

$res = shell_exec("PATH.../phantomjs PATH/phantom/examples/test.js 2>&1 $URL $USER $PASSWORD");
echo json_encode(preg_replace("/[^A-Za-z]/", '', $res));
?>

和javascript到

if(creds_verification() == true){
        $.ajax({
        url:"scripts/scripts.php", //the page containing php script
        type: "post", //request type,
        dataType: 'json',
        data: {url: URL, user: USER, password: PASS},
        success:function(result){
            if(result == "Yes"){
               Call another external function 
            }else{
               console.log(result)
         }
       }
     });
    }

无法使用AJAX请求中的字符串结果

1 个答案: