PHP Multidimensional Array Move values and insert

I have this array that I am needing to insert into the database. My below code does not work, I end up with the same values.

array(10) { [0]=>  array(1) { ["GymnastName"] => string(7) "ertwert"  }
            [1]=>  array(1) { ["GymnastName"] => string(6) "wergfb"  }
            [2]=>  array(1) { ["GymnastAge"] => string(8) "ewrtwert" }
            [3]=>  array(1) { ["GymnastAge"] => string(8) "dsfvsdtg" }
            [4]=>  array(1) { ["ParentsName"] => string(9) "werfgdsfv" }
            [5]=>  array(1) { ["ParentsName"] => string(9) "wetrgwerg" }
            [6]=>  array(1) { ["ParentsEmail"] => string(7) "erteqrt" }
            [7]=>  array(1) { ["ParentsEmail"] => string(6) "adfwer" }
            [8]=>  array(1) { ["ParentsPhone"] => string(7) "ertwert" }
            [9]=>  array(1) { ["ParentsPhone"]=> string(4) "qert" }
}

Here is my loop:

for ($i=0; $i<$l; $i++) {

    $name = $gymarray[$i];
    $age = $gymarray[$i];
    $parentname = $gymarray[$i];
    $parentemail = $gymarray[$i];
    $parentphone = $gymarray[$i];

    $db->insert statement here

Essentially I need to insert the records as GymnastName, GymnastAge, ParentsName, ParentsEmail, ParentsPhone.

What I end up with on the final code is:

array(1) {
["GymnastName"]=>
string(7) "ertwert"
}

array(1) {
["GymnastName"]=>
string(7) "ertwert"
}

array(1) {
["GymnastName"]=>
string(7) "ertwert"
}

array(1) {
["GymnastName"]=>
string(7) "ertwert"
} 

array(1) {
["GymnastName"]=>
string(7) "ertwert"
}