Beautifully simple columns to rows array flip in PHP. I didn't write this one, I've done this a hundred times for quick and dirty CSV processing scripts, but never kept nice clean code like this. Taken from http://stackoverflow.com/questions/2221476/php-how-to-flip-the-rows-and-columns-of-a-2d-array

array_flip.php

function flip($arr) {
  $out = array();

	foreach ($arr as $key => $subarr)
	{
		foreach ($subarr as $subkey => $subvalue)
		{
			$out[$subkey][$key] = $subvalue;
		}
	}

	return $out;
}

whatdoes.txt

Feed it an array of columns like this:
--------------------------------------

Array
(
    [fname] => Array
        (
            [0] => chris
            [1] => joe
        )

    [email] => Array
        (
            [0] => chris@email.com
            [1] => joe@email.com
        )

)



Returns an array of rows with indexed fields like this:
-------------------------------------------------------

Array
(
    [0] => Array
        (
            [fname] => chris
            [email] => chris@email.com
        )

    [1] => Array
        (
            [fname] => joe
            [email] => joe@email.com
        )

)

nice , thank you