PHP分析POST重复值解决办法

if($_POST['part'][0]==$_POST['part'][1] && $_POST['transysno'][0]==$_POST['transysno'][1] && $_POST['tranlineid'][0]==$_POST['tranlineid'][1]){
    echo ($_POST['count'][0] + $_POST['count'][1]);
}else{
    echo 'part,transysno,tranlineid not match';
}