weather.com

<? /**

• Weather Script for CodeIgniter
• @author Kevin Burton [CoDeR]
• @package CodeIgniter 1.5.x
• @subpackage Libraries
• @version 1.1
• Thanks to Nick Schaffner from 53x11.com for the script.
• This has been modified and ported to CodeIgniter 1.5.4
• REQUIREMENTS
• 1. URL and DATABSE must be loaded.
• 2. Set the below paramters
• 3. By requirements of the weather.com API, you can only refresh the weather a minimum of 30 minutes.
• You can set this to more if you want by changing the cache_time value.
• 4. If you do not have the table setup already, the constructor will do it for you automatically.
• 5. You will need to register with weather.com and it will give you a folder of icons you use with
• the system. This system will output the filename for it.
• 6. ENJOY!
• USAGE
• <?
• $config['zipcode'] = 'XXXXXXX';
• $config['partner'] = 'XXXXXXX';
• $config['license'] = 'XXXXXXX';
• $this->load->library('weather', $config);
• ?>
• Get the array by calling: $this->weather->get_weather();
• To spit out the contents of the array, use: $this->weather->trace_array();
• OR
• You can access the variables individually instead of through the get_weather() function
• Example: $this->weather->sunr; // Sunrise.
• or $this->weather->icon; // the icon name

*/

class Weather {

/* You must modify these variable to match your own */ var $zipcode = 'XXXXXX'; var $partner = 'XXXXXXXXX'; var $license = 'XXXXXXXXXXXXX'; var $wfile = './assets/weather/cache/weather.xml'; var $units = 'm'; var $table_name = 'weather'; var $site_name = 'local';

/* DO NOT MODIFY below: */ var $xmlserver = 'http://xoap.weather.com/weather/local/'; var $CI; // declare holder for CodeIgniter var $cache_time = 30; // 30 minutes requied for cache var $data_array = array();

/**

• PHP4 Constructor
• @return Weather */ function Weather($params = array()) { $this->CI =& get_instance(); // load instance of CodeIgniter $this->CI->load->helper('file'); // load File Helper functions $this->initialize($params); }

/**

• Class Initialization
• @access public
• @param array $params
• @return void */ function initialize($params = array()) { if( count($params) > 0 ) { foreach ($params as $key=>$value) { $this->$key = $value; } } $this->_check_install(); $this->_setURL(); $this->_requestXML(); }

/**

• Trace method... Array and Object Friendly viewer
• @param unknown_type $obj
• @param unknown_type $die */ function trace($obj, $die=false) { print("

  ");
  print_r($obj);
  print("

  ");

if($die) die(); }

/**

• Check Installation
• @access private
• @return void */ function _check_install() { //$this->trace($this->CI, true);

if (!$this->CI->db->table_exists($this->table_name)) { $sqlstmnt = " CREATE TABLE {$this->table_name} ( site varchar(64) NOT NULL default '{$this->site_name}', last_request timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP, tstamp int(16) NOT NULL default '0' ) ENGINE=MyISAM DEFAULT CHARSET=latin1;"; $this->CI->db->query($sqlstmnt); } }

/**

• Set URL
• @access private
• @return void / function _setURL() { $this->xmlserver = $this->xmlserver.$this->zipcode."?link=xoap&cc;=∥={$this->partner}&key;={$this->license}&unit;={$this->units}"; }

/**

• Request the XML for the weather.com server
• @access private
• @param unknown_type $zipcode
• @return void / function _requestXML() { $query = $this->CI->db->query("SELECT tstamp FROM {$this->table_name} WHERE site='{$this->site_name}' LIMIT 0,1"); if($query->num_rows()==0) { $this->seek(true); return; } else { $row = $query->row_array(); if( (time()-$row['tstamp']) > (60$this->cache_time) ) { // get a fresh copy of the XML; $this->seek(true); return; } else { $this->seek(false); return; } } }

/**

• Grab the data....
• @access private
• @param bool $fromWeatherCom
• @return void */ function seek($fromWeatherCom = false) { $xml_parser = xml_parser_create();

if($fromWeatherCom==true) { $data = implode('', file($this->xmlserver)); write_file($this->wfile, $data); } else { $data = read_file($this->wfile); }

xml_parse_into_struct($xml_parser, $data, $vals, $index); xml_parser_free($xml_parser);

$t = true;

foreach ($vals as $row) { if( isset($row['value']) ) {

 if( $row['level']==3 )
 {
  $tag  = strtolower($row['tag']);
  $value  = $row['value'];
  $this->$tag = $value;
  $this->data_array[$tag] = $value;
 }

} }

$query = $this->CI->db->query("SELECT site FROM {$this->table_name} WHERE site='{$this->site_name}'"); if( $query->num_rows()==0) { $this->CI->db->query("INSERT INTO {$this->table_name} (site, tstamp) VALUES ('{$this->site_name}',".time().")"); } else { $this->CI->db->query("UPDATE {$this->table_name} SET tstamp='".time()."' WHERE site='{$this->site_name}'"); } }

/**

• Spit out the data_array

*/ function trace_array() { $this->trace($this->data_array, true); }

/**

• Grab all the data....
• @return array */ function get_weather() { return $this->data_array; } } ?>