CSV import thousands of rows - php

Question

I have multiple csv feeds to read with php 7.3.
When i have less than 500 lines (perhaps 1000) it works fine but with more i have
'PHP message: PHP Fatal error: Allowed memory size of 134217728 bytes
exhausted (tried to allocate 8192 bytes)
I read a lot of things about this common error
In php.ini, if I added
memory_limit=1024M
It is similar if I change it to -1.
Data comes from an api
You could see below the 4 main functions called
The error provides from the last (function parse - $lines[$index] = str_getcsv($line);)
Instead of getting the full file into a variable, i parse it for newlines and then do str_getcsv on each array element.
public function getProducts(Advertiser $advertiser): ProductCollection
{
$response = $this->getResponse($advertiser->getFeedUrl());
$content = gzdecode($response);
$products = $this->csvParser->parseProducts($content);
return $products;
}
private function getResponse(string $url): string
{
$cacheKey = sprintf('%s-%s',
static::CACHE_PREFIX,
md5($url)
);
if ($this->cache->has($cacheKey)) {
return $this->cache->get($cacheKey);
}
$response = $this->client->request(static::REQUEST_METHOD, $url);
$body = (string) $response->getBody();
$this->cache->set($cacheKey, $body);
return $body;
}
public function parseProducts(string $csvContent): ProductCollection
{
$lines = $this->parse($csvContent);
$keys = array_shift($lines);
return new ProductCollection($keys, $lines);
}
private function parse(string $content): array
{
$lines = str_getcsv($content, PHP_EOL);
foreach ($lines as $index => $line) {
$lines[$index] = str_getcsv($line);
}
return $lines;
}
So, i think it's due to parse functon but i don't know what to do