curl function return Protocol http not supported or disabled in libcurl

Question

im facing here a problem with this function :

function curl_function($uri) 
{    
    $ch = curl_init($uri);
    $timeout = 30; //set to zero for no timeout
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    curl_setopt($ch, CURLOPT_USERAGENT, 'mycoreg');
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    $file_contents = curl_exec($ch);
    $errornum      = curl_errno($ch);
    $info          = curl_getinfo($ch);
    $status        = (int) $info['http_code'];
    if ($errornum !== 0) {
        echo 'Error: ', curl_error($ch);
        $file_contents = NULL;
    }
    curl_close($ch);

    return $file_contents;
}

It gives the error that

"http protocol is not supported or disabled".

plz need help. thanks.

very strange error, are you sure that https is not supported instead of http ??? — Halayem Anis
– Halayem Anis, Commented Oct 9, 2015 at 10:44
ooops , i've just found the problem , it was a space before http in my url. — user3911183
– user3911183, Commented Oct 9, 2015 at 10:56

phpguru · Accepted Answer · 2018-03-19 20:56:27Z

3

Debug print your URL and ensure it contains no extraneous characters.

In my case, the URL I was using with php curl was quoted. The quote is not printed by curl error handling, so the error is rather confusing and hard to track down.

You can generate this error with the following code:

// wrong
$uri = "'". "http://www.google.com/" . "'"; // quoted string
curl_setopt($ch, CURLOPT_URL, $url);

Now try it with the proper URL format...

// right
$uri = "http://www.google.com/"; // correct format URL
curl_setopt($ch, CURLOPT_URL, $url);

answered Mar 19, 2018 at 20:56

phpguru

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Comments

Halayem Anis · Accepted Answer · 2015-10-09 11:01:46Z

1

Update your function like this to avoid a strange errors :)

function curl_function($uri) {
    $uri = trim($uri); 
    // ... your code  
}

answered Oct 9, 2015 at 11:01

Halayem Anis

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