Re-keying an array

[technossomy]

Dear all

Suppose I have an array:

$arr = array(0 => array("AAB", 10.0, 2000), 1 => array("ABC", 12.2, 3000));

I want to change this conveniently into

$arr = array("AAB" => array(10.0, 2000), "ABC" => array(12.2, 3000));

Of course one may assume that the strings in this array are all unique. Is there a standard way to do this other than to traverse the original array to populate the new array?

Best wishes

Tech

[technossomy]

Problem solved. In constructing the array, I say:

while ($row) $arr[$row['Symbol']] = $row;

where $row would contain my data, as opposed to:

while ($row) $arr[] = $row;

Anecdotal evidence suggests that this first method is slower than the second one but not substantially so.

[jatar_k]

though even if it is lsower it is still faster than building the array and then having to rewalk the whole thing.