Blogger Information
Blog 63
fans 1
comment 0
visits 76024
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
用正则表达式,抓取京东的商品列表
桃儿的博客
Original
1512 people have browsed it

用正则表达式,抓取京东的商品列表

保存到服务器

商品列表1.png

抓取文件

实例

<!--抓取文件-->
<?php
require 'function.php';

$url = 'https://list.jd.com/list.html?cat=737,794,878';
$data = curl_data($url);
//echo $data;

$pattem = '/<li class="gl-item">(.*?)<i class="promo-words">/si';  //.*匹配前边原子以后的所有的内容  i 不分大小写
//中间数值必须为字符串,不能是数组
$preg = preg_match_all($pattem,$data,$matches);
//print_r($preg);
//print_r($matches);
$contents = preg_replace('/data-lazy-img/','src',$matches[0]);
//print_r($con);

//用循环匹配每个数组里面的汉字说明
$pattem1 = '/<img.*src="(.+)"/i';//图片正则
$pattem2 = '/(<em>)(.*?)<\/em>/si'; //文字正则
foreach ($contents as $content){
    $preg_img = preg_match_all($pattem1,$content,$contents_img);
    $preg_text = preg_match_all($pattem2,$content,$contents_text);
    $fridge_img = trim($contents_img[1][0]);
    $fridge_text = trim($contents_text[2][2]);
    $data1=[
        'fridge_img'=>$fridge_img,
        'fridge_text'=>$fridge_text
    ];
//     print_r($data1);
    insert('fridge_list',$data1);

}

//find() 查询一条   select()查询所有
//$data2 = find('fridge_list','fridge_id,fridge_img,fridge_text');
$data2 = select('fridge_list','fridge_id,fridge_img,fridge_text');
print_r($data2);

运行实例 »

点击 "运行实例" 按钮查看在线实例


显示文件

商品列表2.png

实例

<!--显示文件-->
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>冰箱</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        h2{
            text-align: center;
            margin:20px 0;
            color:green;
        }
        ul{
            width: 1000px;
            margin:0 auto;
            text-align: center;
            list-style: none;
            overflow: hidden;

        }
        li{
            float: left;
            width: 300px;
            height: 280px;
            display: block;
            padding: 15px;
            border: 1px solid lightgray;
        }
        li a{
            float: left;
            font-size: 15px;
            text-decoration: none;
        }
    </style>
</head>
<body>

<h2>冰箱列表</h2>
<ul>
    <?php
    require 'function.php';
    $contents = select('fridge_list','fridge_img,fridge_text');
    foreach ($contents as $content){
        echo "<li><img src='{$content['fridge_img']}'>"."<a href='#'>{$content['fridge_text']}</a></li>";

    }
    ?>
</ul>

</body>
</html>

运行实例 »

点击 "运行实例" 按钮查看在线实例


Statement of this Website
The copyright of this blog article belongs to the blogger. Please specify the address when reprinting! If there is any infringement or violation of the law, please contact admin@php.cn Report processing!
All comments Speak rationally on civilized internet, please comply with News Comment Service Agreement
0 comments
Author's latest blog post