How to search in an array by value part - php

Question

I want to get data from api request. I make a query on the value of oc52. Get $date array. The issuing server adds the MH prefix. Which generates itself relative to the name. I am trying to extract part of the array using the class.
This is the array I get when querying:
$data = [
[
'product' => 'CH C104.12',
'brand' => 'CH C104.12',
'price' => 12.34,
],
[
'product' => 'MH OC52',
'brand' => 'MH OC52',
'price' => 56.78,
],
[
'product' => 'WX WL7074-12',
'brand' => 'WX WL7074-12',
'price' => 90.12,
],
];
Here's the class I'm doing a search for
class ProductFilterIterator extends \FilterIterator
{
protected $filter;
public function __construct(\Iterator $iterator, $filter)
{
$this->filter = $filter;
parent::__construct($iterator);
}
public function accept() : bool
{
$current = $this->getInnerIterator()->current();
return $current['product'] == $this->filter;
}
}
$iterator = (new \ArrayObject($data))->getIterator();
$filter1 = new ProductFilterIterator($iterator, 'OC52');
foreach ($filter1 as $data) {
echo "<pre>";
var_dump($data);
echo "</pre>";
}
Does nothing reflect? If I write in line MH OC52:
$filter1 = new ProductFilterIterator($iterator, 'MH OC52');
Then everything works.
How do I implement it if I don't know the front - MH ???

Answer 1

If you just want to check the end of the string, this stores the length to check after storing the filter. Then in the main accept() method, it just looks at the last part of the string (using substr()) in the array to compare...
class ProductFilterIterator extends \FilterIterator
{
protected $filter;
protected $length;
public function __construct(\Iterator $iterator, $filter)
{
$this->filter = $filter;
$this->length = -strlen($filter);
parent::__construct($iterator);
}
public function accept() : bool
{
$current = $this->getInnerIterator()->current();
return substr($current['product'], $this->length) == $this->filter;
}
}