200 HTTP CODE at non-url strings

Question

$agent = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)";
$ch=curl_init();
   curl_setopt ($ch, CURLOPT_URL,$url );
   curl_setopt($ch, CURLOPT_USERAGENT, $agent);
   curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt ($ch,CURLOPT_VERBOSE,false);
   curl_setopt($ch, CURLOPT_TIMEOUT, 5);
   curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, FALSE);
   curl_setopt($ch,CURLOPT_SSLVERSION,3);
   curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, FALSE);
   $page=curl_exec($ch);
   //echo curl_error($ch);
   $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
   curl_close($ch);

I'm using cUrl at my project. I'm getting HTTP CODE of web sites. But when i try "asdasd" ($url="asdasd") , returned HTTP CODE is 200 . But "asdasd" isn't a web site. Why HTTP CODE is 200 ?

What about `curl_error`? Does it return anything? – Gumbo Jan 07 '11 at 16:18 — Gumbo, Jan 07 '11 at 16:18

score 1 · Accepted Answer · answered Jan 07 '11 at 16:21

1

You might want to check the return value from curl_exec first. It says in the manual:

Returns TRUE on success or FALSE on failure. However, if the CURLOPT_RETURNTRANSFER option is set, it will return the result on success, FALSE on failure.

For curl_getinfo there's a side note:

Information gathered by this function is kept if the handle is re-used. This means that unless a statistic is overridden internally by this function, the previous info is returned.

So that HTTP 200 might well be the result of a previous cURL invocation.

answered Jan 07 '11 at 16:21

Linus Kleen

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so, i should set CURLOPT_RETURNTRANSFER to FALSE . Right? Or i misunderstood ? – Eray Jan 08 '11 at 16:24
@Eray Um... No. Not necessarily. My answer is about finding out, whether or not the actual request was successful. In either case (**`CURLOPT_RETURNTRANSFER`** set, or not), `curl_exec()` will return `FALSE` in case of failure. – Linus Kleen Jan 08 '11 at 16:57

score 0 · Answer 2 · answered Apr 08 '11 at 15:45

0

Another possible error can happen if you develop in local and you use custom managed DNS services, then you probably can get some managed error pages like OpenDNS is doing.

answered Apr 08 '11 at 15:45

Achilleterzo

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200 HTTP CODE at non-url strings

2 Answers2

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