Rss reader in PHP | 易学教程

问题

 header('Access-Control-Allow-Origin: *');
 $tmpFile = 'tmpFile.txt';

 $val="http://rss.news.yahoo.com/rss/topstories";
  $curlHandle = curl_init($val);  
 $filePointer = fopen($tmpFile, "w");  
 curl_setopt($curlHandle, CURLOPT_FILE, $filePointer);  
 curl_exec($curlHandle);
 curl_close($curlHandle);
 fclose($filePointer); 

 $linesArr = file($tmpFile);  
 foreach($linesArr as $eachLine){
 echo($eachLine);
}

The program supposed to fetch all the materials from yahoo rss sites and output them into the tmpFile.

After executed the program, I opened up the tmpFile.txt. It shows

c1.ops.sp1.yahoo.com uncompressed/chunked Wed Apr 11 01:46:41 UTC 2012 -->

This doesn't look right. I pasted the url http://rss.news.yahoo.com/rss/topstories there are plenty of materials returned.

回答1:

What you needed was curl_setopt($curlHandle, CURLOPT_ENCODING , "gzip"); .... yahoo uses compression for its rss feed ...

Additional Information Include .

A. CURLOPT_USERAGENT.... Its nice if you don;t what to start looking like spam

B. CURLOPT_TIMEOUT... Just for effeciency

C. CURLOPT_FOLLOWLOCATION .. Becasue of issues with clean URL and routes

Working Code

header ( 'Access-Control-Allow-Origin: *' );
$tmpFile = 'out.txt';

$val = "http://rss.news.yahoo.com/rss/topstories";
$curlHandle = curl_init ( $val );
$filePointer = fopen ( $tmpFile, "w" );
curl_setopt ( $curlHandle, CURLOPT_FILE, $filePointer );
curl_setopt($curlHandle, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.3 Safari/533.2');
curl_setopt($curlHandle, CURLOPT_ENCODING , "gzip");
curl_setopt($curlHandle, CURLOPT_TIMEOUT,5);
curl_setopt($curlHandle, CURLOPT_FOLLOWLOCATION, TRUE);
curl_exec ( $curlHandle );
curl_close ( $curlHandle );
fclose ( $filePointer );

$linesArr = file ( $tmpFile );
foreach ( $linesArr as $eachLine ) {
    echo ($eachLine);
}

I hope this helps .. let me know if you need anything more

回答2:

If you have http wrapper support with file_*_contents:

header('Access-Control-Allow-Origin: *');
$tmpFile = 'out.txt';
$content = file_get_contents("http://rss.news.yahoo.com/rss/topstories");
file_put_contents($tmpFile, $content);

echo $content;

来源：https://stackoverflow.com/questions/10099062/rss-reader-in-php

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php

rss