PHP capture page garbled analysis

When crawling the page, garbled characters like ������� appear. How to solve it? This article mainly shares with you the analysis of garbled pages captured by PHP. I hope it can help everyone.

1. Conversion encoding

##str, “utf-8”, “GBK”);

2. The data is compressed by gzip

curl获取数据的时候设置添加下面的选项：
curl_setopt($ch, CURLOPT_ENCODING, 'gzip');

使用file_get_contents函数需要安装zlib库$data = file_get_contents("compress.zlib://".$url);

3. Garbled characters are displayed after obtaining the data

在顶部增加下面的代码header("Content-type: text/html; charset=utf-8");

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