如何将其写入 php 代码？图片的 Alt

Question

请问如何将其写入代码？

如果图像的 alt 是 "your alt here" 那么它是 1.

这是我编写的代码。

public 函数 getSiteAdvisor($domain)
        {
            尝试
            {
                $callback_url = "https://www.mcafee.com/threat-intelligence/site/default.aspx?url=" . $域名； 

            $curl_response = $this->curl->get($callback_url);

            if ($curl_response->headers['Status-Code'] == "200") {

                libxml_use_internal_errors(TRUE);
                $this->dom_doc->loadHTML($curl_response);
                libxml_use_internal_errors(FALSE);

                $xpath = new DOMXPath($this->dom_doc);
                $tmp = $xpath->query('/html/body//div[@class="threeFourth"]//img/@alt')->item(0);




我不知道如何对图像的 'alt' 进行编码。
我添加了一些代码，但不确定这是否正确。


                    如果（$tmp->hasAttribute（'src'））{

                    $tmp = $tmp->getAttribute('src');

                    if (stripos($tmp, "Minimal") !== false) {        
                        $siteadvisor_rating = 1;
                    } elseif (stripos($tmp, "Moderate") !== false) {   
                        $siteadvisor_rating = 2;
                    } elseif (stripos($tmp, "High") !== false) {     
                        $siteadvisor_rating = 3;
                    } else {
                        $siteadvisor_rating = 0;
                    }
                } else {
                    $siteadvisor_rating = 0;
                }

            } else {
                $siteadvisor_rating = 0;
            }

            $response = array(
                'status' => 'success',
                'data' => array(
                    'siteadvisor' => (int)$siteadvisor_rating
                )
            );
        }
        catch (Exception $e)
        {
            $response = array(
                'status' => 'error',
                'msg' => $e->getMessage()
            );
        }
        return $response;       
    }

谢谢

Answer 1

我用这个找到了答案：

 if ($tmp->hasAttribute('src')) {

                $tmp = $tmp->getAttribute('alt');

                if (stripos($tmp, "Minimal") !== false) {        
                    $siteadvisor_rating = 1;
                } elseif (stripos($tmp, "Moderate") !== false) {   
                    $siteadvisor_rating = 2;
                } elseif (stripos($tmp, "High") !== false) {     
                    $siteadvisor_rating = 3;
                } else {
                    $siteadvisor_rating = 0;
                }
            } else {
                $siteadvisor_rating = 0;
            }

        } else {
            $siteadvisor_rating = 0;

如何将其写入 php 代码？图片的 Alt

How to write this into php code? Alt of the Image

php

xpath

xpath-2.0