How to crawl data from web pages in php

王林
Release: 2023-02-24 14:08:01
Original
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How to crawl data from web pages in php

#Detailed explanation of examples of grabbing web content in php

Method 1:Use the file_get_contents method to implement

$url = "http://news.sina.com.cn/c/nd/2016-10-23/doc-ifxwztru6951143.shtml"; $html = file_get_contents($url); //如果出现中文乱码使用下面代码 //$getcontent = iconv("gb2312", "utf-8",$html); echo "";
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Method 2: Use curl to achieve

$url = "http://news.sina.com.cn/c/nd/2016-10-23/doc-ifxwztru6951143.shtml"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); $html = curl_exec($ch); curl_close($ch); echo ""; curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 加上这句代码,表示如果请求被重定向时,可以访问到最终的请求页面,不然请求的结果会显示如下内容: Object moved

Object Moved

This object may be found
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