not getting the desired output from an array - php

Question

I need to create an dynamic array and can't get it right.
I need something like this:
Product Name
top
White
Black
Bottom
Red
Green
I came up with this code, which is producing the above text, so my logic must be about right.
$set = array();
$set['name'] = "Product Name";
$options = array("top", "bottom");
$values['top'] = array("White", "Black");
$values['bottom'] = array("Red", "Green");
echo "<pre>".$set['name']."</pre>";
foreach ($options as $o) {
echo "<pre>- $o</pre>";
$set['options'][]['name'] = $o;
foreach ($values[$o] as $v) {
echo "<pre>-- $v</pre>";
$set['options'][]['values']['name'] = $v;
}
}
The array that is created with the above code is:
Array
(
[name] => Product Name
[options] => Array
(
[0] => Array
(
[name] => top
)
[1] => Array
(
[values] => Array
(
[name] => White
)
)
[2] => Array
(
[values] => Array
(
[name] => Black
)
)
[3] => Array
(
[name] => bottom
)
[4] => Array
(
[values] => Array
(
[name] => Red
)
)
[5] => Array
(
[values] => Array
(
[name] => Green
)
)
)
)
THe output I want is:
Array
(
[name] => Product Name
[options] => Array
(
[0] => Array
(
[name] => top
[values] => Array
(
[0] => Array
(
[name] => White
)
[1] => Array
(
[name] => Black
)
)
)
[1] => Array
(
[name] => bottom
[values] => Array
(
[0] => Array
(
[name] => Red
)
[1] => Array
(
[name] => Green
)
)
)
)
)
What am I missing ?

Answer 1

You got
$set['options'][]['name'] = $o;
^
this one
and
$set['options'][]['values']['name'] = $v;
^
This one
in outer as well as inner loop which was adding new item to array (so there were indexes like 0, 1, 2 ...) so could not produce what you wanted.
You may correct your array like below:
Demo
<?php
$set = array();
$set['name'] = "Product Name";
$options = array("top", "bottom");
$values['top'] = array("White", "Black");
$values['bottom'] = array("Red", "Green");
echo "<pre>".$set['name']."</pre>";
foreach ($options as $o) {
echo "<pre>- $o</pre>";
$vals = array();
foreach ($values[$o] as $v) {
echo "<pre>-- $v</pre>";
$vals[] = array('name' => $v );
}
$set['options'][] = array('name' => $o, 'values' => $vals );
}
print_r($set);
?>