PHP Call Function from Inside Itself Until Condition Met - php

Question

I have a function that I am creating that basically connects to the Google Plus API and Pulls information. Unfortunately in order to get more than a few results at a time you need to use the nextPageToken provided in the API callback. Here is what I have so far:
function get_data($url) {
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
function parseResults($nextPageToken = "") {
$count = 0;
$content = get_data('https://www.googleapis.com/plus/v1/activities?query=%23throughglass&maxResults=10&orderBy=recent&fields=items(actor(displayName%2Curl)%2Cid%2Cobject(actor%2Cattachments)%2Curl%2Cverb)%2CnextPageToken&pageToken=' . $nextPageToken . '&key=YOUR API KEY HERE');
$posts = json_decode($content);
$token = $posts->nextPageToken;
foreach ($posts->items as $value){
$id = $value->id;
$id_query = mysql_query("SELECT id FROM images WHERE id = '$id'");
if ($value->verb != "post") continue;
if (mysql_num_rows($id_query) > 0) continue;
echo $value->actor->displayName . "<br />";
$count++;
}
if ($count < 20){
parseResults($token);
}else{
break;
}
}
parseResults();
If you can kind of see what I am trying to do here hopefully someone can help me out. I basically want to keep re-calling the parseResults() function with the provided nextPageToken until there have been 20 records processed.

Answer 1

I was able to solve it with help from Lawrence above:
function get_data($url) {
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
function parseResults($nextPageToken = "", $count) {
$content = get_data('https://www.googleapis.com/plus/v1/activities?query=%23throughglass&maxResults=10&orderBy=recent&fields=items(actor(displayName%2Curl)%2Cid%2Cobject(actor%2Cattachments)%2Curl%2Cverb)%2CnextPageToken&pageToken=' . $nextPageToken . '&key={YOUR_API_KEY}');
$posts = json_decode($content);
$token = $posts->nextPageToken;
foreach ($posts->items as $value){
$id = $value->id;
$name = $value->actor->displayName;
$profile = $value->actor->url;
$post = $value->url;
$post_text = $value->object->attachments[0]->displayName;
$image_small = $value->object->attachments[0]->image->url;
$image_full = $value->object->attachments[0]->fullImage->url;
$id_query = mysql_query("SELECT id FROM images WHERE id = '$id'");
if (mysql_num_rows($id_query) > 0) continue;
if ($value->verb != "post") continue;
if ($value->object->attachments[0]->image->url == "" || $value->object->attachments[0]->fullImage->url == "") continue;
if ($post_text != "#throughglass") continue;
mysql_query("INSERT INTO images (id,
author_name,
author_url,
post_url,
post_text,
image_small,
image_full) VALUES (
'$id',
'$name',
'$profile',
'$post',
'$post_text',
'$image_small',
'$image_full')");
echo "<b>ID: </b>" . $id . "<br />";
echo "<b>Name: </b>" . $value->actor->displayName . "<br />";
echo "<b>Profile URL: </b>" . $value->actor->url . "<br />";
echo "<b>Post URL: </b>" . $value->url . "<br />";
echo "<b>Post Text: </b>" . $value->object->attachments[0]->displayName . "<br />";
echo "<b>Image Small: </b>" . $value->object->attachments[0]->image->url . "<br />";
echo "<b>Image Full: </b>" . $value->object->attachments[0]->fullImage->url . "<br /><br />";
$count++;
}
if ($count < 100){
parseResults($token, $count);
}else{
echo "<br /><br /><br />" . $token;
break;
}
}
parseResults("", 0);

Answer 2

I think you want to count the number of recursive calls.
You can achive this by wrapping the function into a class an use a class property, but an easiest wayt would be to add a parameter to your function parseResult and increment it before the next call.