Array find and replace based other array - php

Question

I have an array $data:
Array
(
[0] => Array
(
[quarter] => Q1
[category] => DEODORANTS,FACE CARE
[fund_type] => EOT
)
[1] => Array
(
[quarter] => Q2
[category] => BODY CARE
[fund_type] => A&P
)
[2] => Array
(
[quarter] => Q2
[category] => ORAL CARE,NOCATEGORY
[fund_type] => A&P
)
)
and other array $categories:
Array
(
[0] => Array
(
[id] => 1
[descriptions] => DEODORANTS
)
[1] => Array
(
[id] => 2
[descriptions] => BODY CARE
)
[2] => Array
(
[id] => 3
[descriptions] => FACE CARE
)
[3] => Array
(
[id] => 4
[descriptions] => ORAL CARE
)
)
I need to change value of category in $data with id from $categories:
code:
function lookup($data = array(), $categories = array())
{
if(is_array($data))
{
foreach ($data as $k => $v)
{
$valCat = explode(',', $v['category']);
if(!empty($valCat))
{
foreach ($valCat as $vc)
{
foreach ($categories as $c)
{
if($c['descriptions'] === $vc)
{
$CatID[] = $c['id'];
}
}
}
}
$data[$k]['category'] = $CatID;
}
return $data;
}
}
result lookup($data, $categories):
Array
(
[0] => Array
(
[quarter] => Q1
[category] => Array
(
[0] => 1
[1] => 3
)
[fund_type] => EOT
)
[1] => Array
(
[quarter] => Q2
[category] => Array
(
[0] => 1
[1] => 3
[2] => 2
)
[fund_type] => A&P
)
[2] => Array
(
[quarter] => Q2
(
[0] => 1
[1] => 3
[2] => 2
[3] => 4
)
[fund_type] => A&P
)
)
correct result should be:
Array
(
[0] => Array
(
[quarter] => Q1
[category] => Array
(
[0] => 1
[1] => 3
)
[fund_type] => EOT
)
[1] => Array
(
[quarter] => Q2
[category] => Array
(
[0] => 2
)
[fund_type] => A&P
)
[2] => Array
(
[quarter] => Q2
(
[0] => 4
)
[fund_type] => A&P
)
)

Answer 1

You're not resetting the value of $CatID. After this line
foreach ($data as $k => $v)
{
add
$CatID = array();