client.php

<?php
function school_roster($id) {
    $url = "https://www.myutr.com/api/v1/club/$id/school";
      
    // Initialize a CURL session.
    $ch = curl_init();
      
    // Return Page contents.
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    
    //grab URL and pass it to the variable.
    curl_setopt($ch, CURLOPT_URL, $url);
    
    $result = curl_exec($ch);
    // decode JSON
    $apiresult = json_decode($result, true);
    // create arrays with player names and ratings stored by user id
    foreach($apiresult['roster'] as $player) {
    	$playerNames[$player['id']]	= $player['displayName'];
    	$ratings[$player['id']] = $player['singlesUtr'];
    }
    // sort ratings greatest to least
    arsort($ratings);
    // create new roster with names + ratings sorted properly.
    foreach($ratings as $id => $rating) {
    	$roster[] = array(
    	"name" => $playerNames[$id],
    	"rating" => $ratings[$id]
    	);
    }
    // add school name to output
    $finalresult = array(
    "schoolName" => $apiresult['displayName'],
    "roster" => $roster,
    );
    
    return $finalresult;
    }