PHP - 如何使用get或post方法抓取外部URL并从中解析json数据?

时间:2014-02-21 07:44:38

标签: php json curl zend-framework2

我有一台运行ZF2的服务器,我有另一台PHP客户端,现在来自客户端我需要通过get或post方法读取json输出。

如何抓取外部链接表单客户端并解析JSON数据以读取'result'=>的值$ MSG?

客户:http://www.other-end-user.com/view

<?php
$customerid = $_GET['id'];
$id = substr('3' . rand(0,9999), 0-$length);
$default = "https://toogle.com?id={$id}";
$b = "<a href={$default} id={$customerid}button class={$customerid}button><img src=\"http://toogle.com/button.png\" /></a>";

#curl "http://www.external-analytics-site.com/ajax/json" | grep result
$live = true
if ($live){
  echo $b;
} else {
  echo "Live query failed";    
}


?>

服务器(ZF2):http://www.external-analytics-site.com/ajax/json

class AjaxController extends AbstractActionController {
    public function jsonAction(){
      $response = $this->getResponse();
      $msg = true;        
      $json = array(
        'result' => $msg,
        'module' => 'ajax',
        'data' => "test"
      );
      $response->setContent(Json::encode($json));
      return $response;            
      exit;
    }
}

2 个答案:

答案 0 :(得分:1)

你可以用 file-get-contents() 通过GET从服务器读取

您可以使用json_decode来解析结果

答案 1 :(得分:1)

您可以使用file_get_content来获取json数据..但如果您还需要页面内容..

 function crawl_page($url, $depth = 5)
{
    $saved = array();
    if (isset($saved[$url]) || $depth === 0) {
        return;
    }

    $saved[$url] = true;

    $dom = new DOMDocument('1.0');
    @$dom->loadHTMLFile($url);

    $anchors = $dom->getElementsByTagName('a');
    foreach ($anchors as $element) {
        $href = $element->getAttribute('href');
        if (0 !== strpos($href, 'http')) {
            $path = '/' . ltrim($href, '/');
            if (extension_loaded('http')) {
                $href = http_build_url($url, array('path' => $path));
            } else {
                $parts = parse_url($url);
                $href = $parts['scheme'] . '://';
                if (isset($parts['user']) && isset($parts['pass'])) {
                    $href .= $parts['user'] . ':' . $parts['pass'] . '@';
                }
                $href .= $parts['host'];
                if (isset($parts['port'])) {
                    $href .= ':' . $parts['port'];
                }
                $href .= $path;
            }
        }
        $this->crawl_page($href, $depth - 1);
    }
    echo "URL:",$url,PHP_EOL,"CONTENT:",PHP_EOL,$dom->saveHTML(),PHP_EOL,PHP_EOL;
}