<?php
$sort_key = filter_input(INPUT_POST, 'sortkey');
$player = filter_input(INPUT_POST, 'player: ');
$pos = filter_input(INPUT_POST, 'pos: ');
$bats = filter_input(INPUT_POST, 'bats: ');

$rays = array (
        array('pos: ' => 'SS, ', 'player: ' => 'Beckham, ', 'bats: ' => '1'),
        array('pos: ' => 'DH, ', 'player: ' => 'Souza, ', 'bats: ' => '6'),
        array('pos: ' => 'LF, ', 'player: ' => 'Jennings, ', 'bats: ' => '2'),
        array('pos: ' => 'RF, ', 'player: ' => 'Mahtook, ', 'bats: ' => '5'),
        array('pos: ' => 'CF, ', 'player: ' => 'KierMaier, ', 'bats: ' => '9'),
        array('pos: ' => 'C,  ', 'player: ' => 'Casali, ', 'bats: ' => '8'),
        array('pos: ' => '2B, ', 'player: ' => 'Forsythe, ', 'bats: ' => '3'),
        array('pos: ' => '1B, ', 'player: ' => 'Loney, ', 'bats: ' => '7'),
        array('pos: ' => '3B, ', 'player: ' => 'Longoria, ', 'bats: ' => '4')
    );

    function array_mlb_team($sort_key) {
        return function($lft,$rt) use ($sort_key) {
            if($lft[$sort_key] < $rt[$sort_key]) {
                return -1;
            } else if($lft[$sort_key] > $rt[$sort_key]) {
                return 1;
            } else {
                return 0;
            }
        };
    }

    //Sorts by Player Name
    $sort_by_player = array_mlb_team('player: ');
    usort($rays, $sort_by_player);
    // Sorts by Player Position
    $sort_by_pos = array_mlb_team('pos: ');
    usort($rays, $sort_by_pos);
    //Sorts By Batting Order
    $sort_by_bat = array_mlb_team('bats: ');
    usort($rays, $sort_by_bat);