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@mlewis23 ā, that was so long ago 
Short answer - yes.
In JavaScript, for the user scripts I've been writing, I use a Regular Expression within the function below. I've used it 3 or so scripts recently.You pass it the 'Link' response header. I split it by a comma and then try to match each one looking for rel="next"; at the end.
function nextURL(linkTxt) {
var url = null;
if (linkTxt) {
var links = linkTxt.split(',');
var nextRegEx = new RegExp('^<(.*)>; rel="next"$');
for (var i = 0; i < links.length; i++) {
var matches = nextRegEx.exec(links[i]);
if (matches) {
url = matches[1];
}
}
}
return url;
}
In PERL, I get the response header 'link' and then try to match it to a regular expression by splitting on the commas.
In PHP, I couldn't find an easy way to get just the 'link' response header, so I first do a regular expression looking for '/^link: (.*)$/i' and then if it matches, do the splitting (explode as split is deprecated) and comparing to each link within it.
It's not robust in that if the order ever changes and rel="next" comes somewhere other than the end, I'm screwed.
Hi there,
I know this post is a few years old now but I am new to the canvas API and using cURL. I used almost all of the code that you mentioned above and am still not getting any links for my next page? All I get returned is "Link: ; rel="current",; rel="prev",; rel="first",; rel="last" ", which isn't ideal.
Any idea of where I may be going wrong?
(I'm using a web browser over command line)
Here's my code:
<?php
$url = "https://[instance].instructure.com/api/v1/accounts/1/users?per_page=100";
$auth_token = "TOKEN";
$http_headers = array ( 'Authorization: Bearer ' . $auth_token );
$ch = curl_init();
curl_setopt_array( $ch, array (
CURLOPT_HTTPHEADER => $http_headers,
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_VERBOSE => FALSE,
CURLOPT_HEADER => TRUE,
CURLOPT_URL => $url) );
if (isset($options)) {
$data_string = http_build_query( $options );
$query_string = preg_replace( '/%5B\d+%5D/', '[]', $data_string );
curl_setopt( $ch, CURLOPT_URL, $url . '?' . $query_string );
}
$response = curl_exec( $ch );
if ($response === FALSE) {
curl_close( $ch );
return;
}
$header_size = curl_getinfo( $ch, CURLINFO_HEADER_SIZE );
$header = substr( $response, 0, $header_size );
$body = substr( $response, $header_size );
while ( preg_match( '/^link: (.*)$/im', $header, $matches ) ) {
$link_info = $matches[1];
$links = explode( ',', $link_info );
$nextpage = NULL;
foreach ( $links as $link ) {
if (preg_match( '/<(.*?)>; rel="next"$/', $link, $matches )) {
$nextpage = $matches[1];
}
}
if (!isset( $nextpage )) {
break;
}
curl_setopt( $ch, CURLOPT_URL, $nextpage );
$response = curl_exec( $ch );
if ($response !== FALSE) {
$header_size = curl_getinfo( $ch, CURLINFO_HEADER_SIZE );
$header = substr( $response, 0, $header_size );
$body .= substr( $response, $header_size );
}
}
if (preg_match( '/\]\[/', $body )) {
$body = preg_replace( '/\]\[/', ',', $body );
}
echo $response;
?>āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāThank you 
Oh, it was supposed to be "I checked the response headers on chrome and wasn't getting any links showing there either".
This is my return when I make the call:
Thanks for your help, I'll have a good look at it
Tommy
So after doing some searching I managed to get to this outcome and it works perfectly:
<?php
$curl = curl_init();
$token = "<YOUR TOKEN>";
$pageNo = 0;
function curlCall($curl, $endpoint, $token,$pageNo){
curl_setopt_array($curl, array(
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => 'https://<YOUR INSTANCE>.instructure.com/api/v1' . $endpoint . '?access_token=' . $token . '&per_page=100&page=' . $pageNo
));
}
$endpoint = "/accounts/1/users";
do{
$pageNo++;
curlCall($curl, $endpoint, $token, $pageNo);
$resp = curl_exec($curl);
$json = json_decode($resp);
//Process $json here
}while(sizeof($json) > 0);
$pageNo = 0;
?>āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāI hope this is helpful to other people having the same problem
Hi Glen and Scott,
You have to switch to the advanced editor by clicking the Use advanced editor link on the top right of the editor.
After you have switched paste your code in and select it then click insert button (1).
Hover over Syntax Highlighting (2).
Then select the language (3).
It looks like Perl will need to be added to the list of syntax highlighting but I think for now you could use the plain format to at least preserve indentation.
I guess more than two years is long enough to wait before following up. 
I don't remember exactly how much time it took for this issue to be resolved. Today Canvas' API returns complete, absolute URLs for the various types of links in the "Link" HTTP response header. I no longer need to use a hack to reconstruct the various URLs in my code.
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