php循环遍历2D数组

I access the following values like this.

$result->{'HistoricalPricesResult'}->HistoricalPricesResult[0]->Price
$result->{'HistoricalPricesResult'}->HistoricalPricesResult[0]->Low
//next row
$result->{'HistoricalPricesResult'}->HistoricalPricesResult[1]->Price
$result->{'HistoricalPricesResult'}->HistoricalPricesResult[1]->Low

However I need to consolidate this to

$values[0][price]
$values[0][low]
$values[1][price]
$values[1][low]

2 other strange things. The values are strings and I need them to be decimals(2 decimal points) and also the min and the max for price and low accross all the rows

Well the obvious way to build an array of values would be:

$values = array();
for($i = 0; $i < some_maximum_value; $i++) {
   $values[$i] = array(
      'price' => $result->{'HistoricalPricesResult'}->HistoricalPricesResult[$i]->Price,
      'low' => $result->{'HistoricalPricesResult'}->HistoricalPricesResult[$i]->Low,
   );
}

TADAAAAAA!!!!

$values = array();
foreach($result->{'HistoricalPricesResult'}->HistoricalPricesResult as $key => $obj){
    $values[$key]['price'] = $obj->Price;
    $values[$key]['low'] = $obj->low;
}

$myVals = array();
foreach ($result->{'HistoricalPricesResult'}->HistoricalPricesResult as $key => $v)
{
   $myVals[$key]['price'] = 1.0 * $c->Price;  //hoping string has 2 after the decimal
   $myVals[$key]['low'] = 1.0 * $c->Low
}

Try to figure out max/min yourself

Check out foreach loops and string/float conversion

http://us2.php.net/manual/en/control-structures.foreach.php
http://www.php.net/manual/en/language.types.string.php#language.types.string.conversion