Snippets Money
Money
Stock Information Retrieval (c.ticker.php)
by: Marshall Presnell
|
April 13, 2001
Version: 1.00.00.0004
Type: Class
Category: Money
License: GNU General Public License
Description: This class will retrieve information from Yahoo's finance site and put it into a nice, usable, class variable for you to use elsewhere at your leisure. Example usage is in the class comments.
<?php
// c.ticker.php
// $version: 1.00.00.0004
//
// A portion of the phpcmx system under development by J. Marshall Presnell
// GPL 2001 J Marshall Presnell (marshall@myself.com)
//
// Please let me know if you update this class or use it in your systems.
//
// -------------------------------------------------------------------------
//
// Retrieve information from Yahoo finance on a specific stock ticker symbol
//
// Usage example:
//
// $s = new ticker();
// $s->get("MSFT");
// if ($s->lastTrade > $s->open) {
// print ("Bill made money today");
// }
//
// Note that this class is specifically designed to NOT do the fancy stuff
// like displaying the data, that is up to the calling program.
//
// Some will undoubtedly question why I put this simple task in a class,
// well.... it's because I plan to expand the class with more sophisticated
// lookups including news, analyst's recommendations, and SEC filings.
//
// -------------------------------------------------------------------------
// Prevent multiple inclusions so it is safe to include it pretty much anywhere.
if (!defined("C_TICKER_PHP")) {
define("C_TICKER_PHP", 1);
class ticker {
var $ticker;
var $lastTrade;
var $lastTradeTime;
var $change;
var $open;
var $dayRange;
var $high;
var $low;
var $volume;
var $chartURL;
// ========================================
// Constructor
// ========================================
function ticker() {
// No constructor requirements
}
function get($symbol) {
// First, clear everything out...
$this->ticker = "";
$this->lastTrade = "";
$this->lastTradeTime = "";
$this->change = "";
$this->open = "";
$this->dayRange = "";
$this->volume = "";
$this->chartURL = "";
// Get the CSV data from the finance.yahoo.com site, do a quick open/read/close
// operation. (Not too critical for low volume sites, but higher volume sites
// will notice some small efficiency increase)
$fp = fopen("http://quote.yahoo.com/d/quotes.csv?s=$symbol&f=sl1d1t1c1ohgv&e=.csv", "r");
$read = fread($fp, 2048);
fclose($fp);
// Remove all the quotes from the information
$read = str_replace("\"", "", $read);
// Parse out the fields on comma boundaries to the $read array
$read = explode(",", $read);
// Now, populate the member variables
$this->ticker = $read[0];
$this->lastTrade = $read[1];
$this->lastTradeTime = $read[2] . " " . $read[3];
$this->open = $read[5];
$this->high = $read[6];
$this->low = $read[7];
$this->dayRange = $read[7] . " - " . $read[6];
$this->volume = $read[8];
$this->change = $this->lastTrade - $this->open;
$this->chartURL ="http://ichart.yahoo.com/t?s=$this->ticker";
}
}
}
?>
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