PHP while loop and array - php

Question

I'm trying to loop through some CSV data and take out the $data[4] item. My eventual goal is to find the average and hopefully use PHP's array_sum. This seems to be working, except that every time I try and create this array, my while loop breaks each value into their own separate arrays ($real), not one array that I can work with. I have tried everything, including working with the arrays outside of the loop, but nothing has worked. Any help would be appreciated!
$symbol=array("XOM","CVX","RDS-A",
"PTR","TOT","SNP","COP",
"IMO","BP","E","STO","EC","SU","MRO");
for($i=0; $i<count($symbol);$i++)
{
$handle = #fopen("http://ichart.yahoo.com/table.csv?s={$symbol[$i]}&a=10&b=12&c=2013&d=10&e=12&f=2013&g=d&ignore=.csv", "r", false, $context);
if ($handle === false)
{
// trigger (big, orange) error
trigger_error("Could not connect to Yahoo!", E_USER_ERROR);
exit;
}
// download title of CSV file and throw away
$data=fgetcsv($handle);
//loop through data
while(($data = fgetcsv($handle)) !==FALSE)
{
$rows++;
$num=count($data);
$real=array($data[4]);
}
var_dump($real);
}
And here's my final output:
array(1) { [0]=> string(9) "92.669998" }
array(1) { [0]=> string(6) "120.00" }
array(1) { [0]=> string(9) "66.290001" }
array(1) { [0]=> string(10) "111.059998" }
array(1) { [0]=> string(5) "58.73" }
array(1) { [0]=> string(9) "82.449997" }
array(1) { [0]=> string(5) "72.82" }
array(1) { [0]=> string(9) "42.740002" }
array(1) { [0]=> string(5) "45.91" }
array(1) { [0]=> string(5) "47.98" }
array(1) { [0]=> string(9) "22.440001" }
array(1) { [0]=> string(5) "41.93" }
array(1) { [0]=> string(5) "34.82" }
array(1) { [0]=> string(5) "35.82" }

Answer 1

Not sure what $context is, but try this...
$symbol=array("XOM","CVX","RDS-A","PTR","TOT","SNP","COP","IMO","BP","E","STO","EC","SU","MRO");
$datas = array();
for($i=0; $i<count($symbol);$i++){
$handle = #fopen("http://ichart.yahoo.com/table.csv?s={$symbol[$i]}&a=10&b=12&c=2013&d=10&e=12&f=2013&g=d&ignore=.csv", "r", false, $context);
if ($handle === false){
// trigger (big, orange) error
trigger_error("Could not connect to Yahoo!", E_USER_ERROR);
exit;
}
// download title of CSV file and throw away
$data=fgetcsv($handle);
//loop through data
while(($data = fgetcsv($handle)) !==FALSE){
$rows++;
$datas[] = $data[4];
}
}
print_r($datas);