Warning: file_get_contents() [function.file-get-contents]: URL file-access is disabled in the server configuration in /homepages/44/d219547995/htdocs/demos/stocks.php on line 5

Warning: file_get_contents(http://finance.google.com/finance?q=GOOG) [function.file-get-contents]: failed to open stream: no suitable wrapper could be found in /homepages/44/d219547995/htdocs/demos/stocks.php on line 5
Stock Demo

Real Time Stock Quotes Demo

This is a demo for the article Real Time Stock Quotes With PHP from my Blog, Jeremy Dorn Web Design.

Type a stock symbol or a company name in the box below and hit the "Get Stock" button. Example searches include "GOOG", "Yahoo", "fannie mae", "NASDAQ:MSFT", etc..

Unknown()

Code for this page

<?php
function getStockInfo($url){

//Load content from passed url into $page variable
  $page = file_get_contents($url);
  
  // Get company name and stock symbol
    //Search and place matches in array
    preg_match("/<h1>([^<]*)<\/h1>[\s]* [\s]*$[a-zA-z]*,([^$]*)\)/",$page,$temp);
    if(count($temp)>1) //If name found
      list(,$name,$symbol) = $temp;
    else //No name found
      list($name,$symbol) = array('Unknown','');

// Get other info
    //Define reusable regular expressions
    $decimal = '[0-9]+[\.]?[0-9]*'; //Matches a decimal number
    $span_id = '[^"]*'; //Matches dynamic span ids used by google
    $span_class = 'ch[grb]'; //Matches classes for colored text
    
    //Long regular expression to match price and changes in price
    preg_match('/<span class="pr" id="'.$span_id.'">('.$decimal.')<\/span><br>\n<span class=bld><span class="'.$span_class.'" id="'.$span_id.'">([\+\-]?)('.$decimal.')<\/span><\/span>\n<span class="'.$span_class.'" id="'.$span_id.'">$[\+\-]?('.$decimal.')%$<\/span>/',$page,$text);

/*  $text holds formatted info
    $price holds the price in dollars
    $dir holds the direction of change ("+" or "-")
    $diff holds the change amount in dollars
    $percent holds the change amount in percent */

if(count($text)>1)// Info found
      list($text,$price,$dir,$diff,$percent) = $text;
    else// No info found, fill with dummy data
      list($text,$price,$dir,$diff,$percent) = array('-','-','','','-');
    
    //Store data in array and return
    $result['name']  = $name;
    $result['symbol'] = trim($symbol);
    $result['price'] = $price;
    $result['diff']  = $diff;
    $result['percent'] = $percent;
    $result['dir'] = $dir;
    $result['text']  = $text;
    
    //Return array of data
    return $result;
}

//If no search was made, default to Google
if(!$_REQUEST['q']) {
	$_REQUEST['q'] = 'GOOG';
}
	// Get stock data
	$data = getStockInfo('http://finance.google.com/finance?q='.urlencode($_REQUEST['q'])); // Google
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd">
<html>
<head>
   <title>Stock Demo</title>
   <style>
#main {
	border: 1px solid #cccccc;
	width: 300px;
	background: #F1F3F5;
    font-family: Arial, Helvetica, sans-serif;
    font-weight:bold;
    font-size : 12px;
}

#result {
    margin-left: 100px;
    text-align:center;
    border: 1px solid #cccccc;
    width: 150px;
    background: #E9ECEF;
    font-family: Arial, Helvetica, sans-serif;
    font-weight:bold;
    font-size : 12px;
    padding:15px;
    margin-bottom:20px;
    margin-top:15px;
}

.text {
	border: 1px solid #cccccc;
}

#caption{
    font-family: Arial, Helvetica, sans-serif;
    font-weight:bold;
    margin:10px;
    font-size : 1.5em;
    color:#C64934;
}
#caption .symbol{
	font-size : .75em;
	padding-left:15px;
}

#icon{
    width:80px;
    height:60px;
    float:left;
    background-image:url(chart.gif);
    background-repeat: no-repeat;
    background-position:center center;
}

.bld{
	font-weight:bold
}
.chg{
	color:green
}
.chr{
	color:#a03
}
.chb{
	color:#000
}
.pr{
	font-weight:bold;
	font-size:1.8em;
}
</style>
</head>
<body>
<form method='get' action='stocks.php'>
	<input type='text' style='width:100px;' name='q' value='<?php echo $_REQUEST['q'] ?>'/><input type='submit' value='Get Stock' />
</form>
    <div id="main">
      <div id="caption"><?php echo $data['name']; ?><span class='symbol'>(<?php echo $data['symbol']; ?>)</span></div>
      <div id="icon"> </div>
      <div id="result"><?php echo $data['text'];	?></div>
    </div>
</body>
</html>