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cURL return last effective url, but don't download content?
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cURL return last effective url, but don't download content? Mikhail Kovalev 08-01-2008
Posted by Mikhail Kovalev on August 1, 2008, 4:47 pm
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 Suppose I have something like this

$resource = curl_init();
curl_setopt($resource, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($resource, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($resource, CURLOPT_URL, '......');
curl_exec($resource);
$lastUrl = curl_getinfo($resource, CURLINFO_EFFECTIVE_URL);
curl_close($resource);

I'm only interested in the $lastUrl address. Is it possible without
wasting bandwidth on downloading the actual trasfer which is at that
address?

Setting RETURNTRANSFER to FALSE outputs transfer directly

Posted by Mikhail Kovalev on August 1, 2008, 5:00 pm
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> Suppose I have something like this
>
> =A0 =A0 $resource =3D curl_init();
> =A0 =A0 curl_setopt($resource, CURLOPT_FOLLOWLOCATION, TRUE);
> =A0 =A0 curl_setopt($resource, CURLOPT_RETURNTRANSFER, TRUE);
> =A0 =A0 curl_setopt($resource, CURLOPT_URL, '......');
> =A0 =A0 curl_exec($resource);
> =A0 =A0 $lastUrl =3D curl_getinfo($resource, CURLINFO_EFFECTIVE_URL);
> =A0 =A0 curl_close($resource);
>
> I'm only interested in the $lastUrl address. Is it possible without
> wasting bandwidth on downloading the actual trasfer which is at that
> address?
>
> Setting RETURNTRANSFER to FALSE outputs transfer directly

Forgot to tell that I'm using CURLOPT_POST & CURLOPT_POSTFIELDS in
there as well

I'm reading about CURLOPT_NOBODY in the manual, but it says
CURLOPT_HTTPGET, CURLOPT_POST and CURLOPT_HTTPPOST will reset
CURLOPT_NOBODY


Posted by Jerry Stuckle on August 1, 2008, 11:24 pm
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Mikhail Kovalev wrote:
> Suppose I have something like this
>
> $resource = curl_init();
> curl_setopt($resource, CURLOPT_FOLLOWLOCATION, TRUE);
> curl_setopt($resource, CURLOPT_RETURNTRANSFER, TRUE);
> curl_setopt($resource, CURLOPT_URL, '......');
> curl_exec($resource);
> $lastUrl = curl_getinfo($resource, CURLINFO_EFFECTIVE_URL);
> curl_close($resource);
>
> I'm only interested in the $lastUrl address. Is it possible without
> wasting bandwidth on downloading the actual trasfer which is at that
> address?
>
> Setting RETURNTRANSFER to FALSE outputs transfer directly

Not really, to get the URL, cURL must download the page, if for no
other reason than to ensure there isn't another redirect.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

Posted by Mikhail Kovalev on August 2, 2008, 3:32 am
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> Mikhail Kovalev wrote:
> > Suppose I have something like this
>
> > =A0 =A0 $resource =3D curl_init();
> > =A0 =A0 curl_setopt($resource, CURLOPT_FOLLOWLOCATION, TRUE);
> > =A0 =A0 curl_setopt($resource, CURLOPT_RETURNTRANSFER, TRUE);
> > =A0 =A0 curl_setopt($resource, CURLOPT_URL, '......');
> > =A0 =A0 curl_exec($resource);
> > =A0 =A0 $lastUrl =3D curl_getinfo($resource, CURLINFO_EFFECTIVE_URL);
> > =A0 =A0 curl_close($resource);
>
> > I'm only interested in the $lastUrl address. Is it possible without
> > wasting bandwidth on downloading the actual trasfer which is at that
> > address?
>
> > Setting RETURNTRANSFER to FALSE outputs transfer directly
>
> Not really, =A0to get the URL, cURL must download the page, if for no
> other reason than to ensure there isn't another redirect.

A header is sufficient for this, or am I wrong?
(Which is exactly what CURLOPT_NOBODY does, btw.)

Posted by Jerry Stuckle on August 2, 2008, 9:52 am
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Mikhail Kovalev wrote:
>> Mikhail Kovalev wrote:
>>> Suppose I have something like this
>>> $resource = curl_init();
>>> curl_setopt($resource, CURLOPT_FOLLOWLOCATION, TRUE);
>>> curl_setopt($resource, CURLOPT_RETURNTRANSFER, TRUE);
>>> curl_setopt($resource, CURLOPT_URL, '......');
>>> curl_exec($resource);
>>> $lastUrl = curl_getinfo($resource, CURLINFO_EFFECTIVE_URL);
>>> curl_close($resource);
>>> I'm only interested in the $lastUrl address. Is it possible without
>>> wasting bandwidth on downloading the actual trasfer which is at that
>>> address?
>>> Setting RETURNTRANSFER to FALSE outputs transfer directly
>> Not really, to get the URL, cURL must download the page, if for no
>> other reason than to ensure there isn't another redirect.
>
> A header is sufficient for this, or am I wrong?
> (Which is exactly what CURLOPT_NOBODY does, btw.)

Did you try it? If so, did it work?

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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