想用PHP抓取某网站库存数据

Question

file_get_contents(); 获取源码后再用正则过滤。

Answer 1

已解出：<?php// 获取页面内容
$content = file_get_contents('http://www.beibei.com/detail/105272.html');// 获取hxcsrf
preg_match('/g.__t__ = \"(.*)\";/U', $content, $matches);
$hxcsrf = $matches[1];// 获取id
preg_match('/pageData.encryptId = \'(.*)\';/U', $content, $matches);
$id = $matches[1];// post 到 api 获取sku
$skuapi = 'http://www.beibei.com/item/detail/get_sku.html';$postdata  =  http_build_query (
    array(
         'hxcsrf' => $hxcsrf,
         'id' => $id
     )
);$opts  = array( 'http'  =>
    array(
         'method'   =>  'POST' ,
         'header'   =>  'Content-type: application/x-www-form-urlencoded' ,
         'content'  =>  $postdata
     )
);$context = stream_context_create($opts);
$sku = file_get_contents($skuapi, false, $context);$result = json_decode($sku, true);echo '<meta http-equiv="content-type" content="text/html;charset=utf-8">';echo '<pre>';
print_r($result);
echo '</pre>';?>
Array
(
    [success] => 1
    [data] => Array
        (
            [sku_id_map] => Array
                (
                    [3] => Array
                        (
                            [0] => 15
                            [1] => 16
                            [2] => 19
                            [3] => 20
                            [4] => 22
                            [5] => 458
                            [6] => 459
                            [7] => 468
                        )                )            [sku_kv_map] => Array
                (
                    [k3] => 颜色
                    [v15] => 大号B红
                    [v16] => 大号B黑
                    [v19] => 大号B绿
                    [v20] => 大号B粉
                    [v22] => 小号绿色
                    [v458] => 小号黑色
                    [v459] => 小号粉色
                    [v468] => 小号红色
                )            [sku_stock_map] => Array
                (
                    [v15] => Array
                        (
                            [id] => 61788
                            [stock] => 100
                            [price] => 9900
                            [origin_price] => 21800
                        )                    [v16] => Array
                        (
                            [id] => 61789
                            [stock] => 100
                            [price] => 9900
                            [origin_price] => 21800
                        )                    [v19] => Array
                        (
                            [id] => 61790
                            [stock] => 100
                            [price] => 9900
                            [origin_price] => 21800
                        )                    [v20] => Array
                        (
                            [id] => 61791
                            [stock] => 100
                            [price] => 9900
                            [origin_price] => 21800
                        )                    [v22] => Array
                        (
                            [id] => 61792
                            [stock] => 100
                            [price] => 8900
                            [origin_price] => 19800
                        )                    [v458] => Array
                        (
                            [id] => 61793
                            [stock] => 100
                            [price] => 8900
                            [origin_price] => 19800
                        )                    [v459] => Array
                        (
                            [id] => 61794
                            [stock] => 100
                            [price] => 8900
                            [origin_price] => 19800
                        )                    [v468] => Array
                        (
                            [id] => 61795
                            [stock] => 100
                            [price] => 8900
                            [origin_price] => 19800
                        )                    [v0] => 800
                )        ))