AJAX foreach $_POST merge values - php

Question

I'm gonna try to be as clear as possible.
I'm currently working on a project for my work, with dynamic forms where the form inputs are in a database, and created dynamically. Every input row looks something like:
Question? Radiogroup Textinput
And when the user press submit in a section of maybe 3-5 of these rows the form is serialised and managed with AJAX. So here comes the part I'm having trouble with, as of now, in my AJAX file, there is a foreach loop which loops through all $_POST values, adds them to an array and then after the array is complete all data is inserted to a SQL database. And I don't know if it's a problem since I'm not a professional DBA, but there's a lot of rows being inserted to the database, since EVERY radio group, and EVERY text input, gets their own row. And I was thinking if I at least could cut it down to every question getting their own row, but how do I then merge the radio group value with the text input value so they are on the same row but different columns.
I hope I'm being clear enough here.
Database layout today
|ID|RowID|Type|User|Value
Where Type is either Radio or Text. What I want to achieve to get half of the rows I'm gonna get this way is:
|ID|RowID|Type|User|Radio|Text
And the problem is howto achieve this when my foreach loop fills an array with a lot of rows, for each form, which as I say, is containing maybe 3-5 rows with both a radio group and a text input. This is how I do it today:
foreach($_POST as $key => $value) {
$values[] = "'{$id}', '{$user}', '{$type}', '{$value}'";
}
$mysqli->query('INSERT INTO data (rowid, user, type, value) VALUES ('.implode('),(', $values).')');
Hope someone can help me out.
Best Regards
Cisco

Answer 1

Solved it by doing the following:
//Only define for testing.
$_POST['rad_1'] = "yes";
$_POST['rad_2'] = "no";
$_POST['rad_3'] = "yes";
$_POST['txt_1'] = "Test";
$_POST['txt_2'] = "Test2";
$_POST['txt_3'] = "Test3";
$array = array();
foreach($_POST as $key => $value) {
$keyarr = explode('_', $key);
$type = $keyarr[0];
$id = $keyarr[1];
$value = $value;
$array[$id][$type] = $value;
}
$values = array();
foreach($array as $key => $value)
{
$values[] = implode(', ', $value);
}
$query = "INSERT INTO table_name test VALUES (" . implode ("),(", $values) . ")";