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Question

I'm trying to get a chart of stock opening prices.

I want to use yahoo's data feed for stock data: http://www.gummy-stuff.org/Yahoo-data.htm

Has anyone ever used this? What I want is basically a 1 column table, each row represents one day, and the first column represents the opening price of a particular stock.

How can I query more than just one day?

Answer 1

This is how you could retrieve data and parse it:

$sourceURL = 'http://finance.yahoo.com/d/quotes.csv?s=AAPL&f=snd1lyr';

$sourceData  = file_get_contents( $sourceURL );

// separate into lines
$sourceLines = str_getcsv($sourceData, "
"); 

foreach( $sourceLines as $line ) {

    $contents = str_getcsv( $line );

    // Now, is an array of the comma-separated contents of a line
}

Update:

Yahoo provides historial data e.g. for AAPL on this page:

http://de.finance.yahoo.com/q/hp?s=AAPL

At the bottom of the page, you may download the table using this link:

http://ichart.finance.yahoo.com/table.csv?s=AAPL&d=3&e=22&f=2011&g=d&a=8&b=7&c=1984&ignore=.csv

I'd propose to play with the webpage to learn which parameters represent what.