php读取远程gzip压缩网页的方法_PHP
今天在调取一家商城的页面信息时候,使用file_get_contents抑或curl:
代码如下:
$url = 'http://www.xxx.com/21/?type=23′;
$temp = file_get_contents($url);
echo $temp;
都得到一片乱码,查看了许多内容,包括页面的header信息,发现原来页面使用了。
类似的信息,即Content-Encoding为gzip,即该站点开启了gzip压缩。这里的解决方案有多种,当然如果你使用file_get_contents的话,可以这样修改:
代码如下:
file_get_contents("compress.zlib://".$url);
或者使用curl来完成:
代码如下:
function curl_get($url, $gzip=false){
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
if($gzip) curl_setopt($curl, CURLOPT_ENCODING, "gzip"); // 关键在这里
$content = curl_exec($curl);
curl_close($curl);
return $content;
}
同时,参考手册上面的解法,还可以对保存gzip类型的字符串进行处理如下:
代码如下:
function gzdecode($data){
$g=tempnam(‘/tmp','ff');
@file_put_contents($g,$data);
ob_start();
readgzfile($g);
$d=ob_get_clean();
return $d;
}

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