API Twitter 1.1 account/update_profile_image - api

Question

I do not know at all how to get the avatar of the profile of a twitter account: /
Even looking at the DOC here:
https://dev.twitter.com/rest/reference/post/account/update_profile_image
If a kind person could help me.
Here is my code without the class
if(isset($_GET['name']))
{
$name= htmlentities($_GET['name']);
}
$cache = 'cache/tweets.tmp';
if(time() - filemtime($cache) > 60){
require 'class/twitteroauth.php';
$connection = new TwitterOAuth('***','****', '**-**', '****');
$pics = $connection->post('account/update_profile_image','//screen_name => HERE...$name....');
//var_dump($pics);
file_put_contents($cache, serialize($pics));
}else{
echo 'Cache utilisé';
$pics = unserialize(file_get_contents($cache));
}

Answer 1

You're looking at the documentation for updating a Twitter user's profile image. From your question, I take it that you simply want to get this image. Remember a POST request is meant for creating new content, not simply GETting it.
Have a look at this:
https://dev.twitter.com/rest/reference/get/users/show
The users/show method provides various information about the user, including a link to the image with the key profile_image_url.
This answer should provide more detail to help you figure it out.