CcexAPI.php

<?php
/**
 * API-call related functions
 *
 * @author Remdev
 * @license MIT License - https://github.com/Remdev/PHP-ccex-api
 */

class CcexAPI {
    
    protected $api_url = 'https://c-cex.com/t/';
    protected $api_key;
    
    
    public function __construct($api_key = '') {
        $this->api_key = $api_key;
    }
    
    protected function jsonQuery($url) {
        $opts = array('http' =>
            array(
                'method'  => 'GET',
                'timeout' => 10 
            )
        );
        
        $context  = stream_context_create($opts);
        $feed = file_get_contents($url, false, $context);
        
        if($feed == 'Empty error'){
            return array('error' => 'Invalid parametres');
        }else{
            return json_decode($feed,true);
        }
    }
    
    
    public function getTickerInfo($pair){
        $json = $this->jsonQuery($this->api_url.$pair.'.json');
        return $json['ticker'];
    }
    
    
    public function getPairs(){
       $json = $this->jsonQuery($this->api_url.'pairs.json'); 
       return $json['pairs'];
    }
    
    
    public function getVolumes($hours=24,$pair=false){
        $url = ($pair) ? 'volume' : 'lastvolumes&pair='.$pair.'&';
        return $this->jsonQuery($this->api_url."s.html?a=".$url."&h=".$hours);
    }
    
    public function getOrders($pair,$self = 0){
        $self = intval( (bool)$self );//return only 0 or 1
        return $this->jsonQuery($this->api_url."r.html?key={$this->api_key}&a=orderlist&self={$self}&pair={$pair}");
    }
    
    public function getHistory($pair,$fromTime = false,$toTime = false,$self = false){
        
        if($fromTime === false){
            $fromTime = 0;
        }
        
        if($toTime === false){
            $toTime = time();
        }
        
        $fromDate = date('Y-d-m',(int)$fromTime);
        $toDate = date('Y-d-m',(int)$toTime);
        
        $url = ($self) ? "r.html?key={$this->api_key}&" : "s.html?";
        return $this->jsonQuery($this->api_url.$url."a=tradehistory&d1={$fromDate}&d2={$toDate}&pair={$pair}"); 
    }
    
    public function makeOrder($type,$pair,$quantity,$price){
        if(strtolower($type) == 'sell'){
            $type = 's';
        }
        if(strtolower($type) == 'buy'){
            $type = 'b';
        }
        return $this->jsonQuery($this->api_url."r.html?key={$this->api_key}&a=makeorder&pair={$pair}&q={$quantity}&t={$type}&r={$price}");
    }
    
    public function cancelOrder($order){
        return $this->jsonQuery($this->api_url."r.html?key={$this->api_key}&a=cancelorder&id={$order}");
    }
    
    public function getBalance(){
        return $this->jsonQuery($this->api_url."r.html?key={$this->api_key}&a=getbalance");
    }
    
}