Why does curl_setopt_array break requests and curl_setopt doesn't? - php

Question

when i try to make a request implementing curl_setopt_array it doesn't work and sophos returns an error:
<?php
try {
$url = 'http://127.0.0.1/index.php';
$fields = array(
'JsonData'=>json_encode(['test' => 'test'])
);
$postvars = http_build_query($fields);
$options = [
CURLOPT_URL => $url,
CURLOPT_POST => count($fields),
CURLOPT_POSTFIELDS => $postvars,
CURLOPT_TIMEOUT => 2,
CURLOPT_RETURNTRANSFER => false,
CURLOPT_FORBID_REUSE => true,
CURLOPT_CONNECTTIMEOUT => 2,
CURLOPT_DNS_CACHE_TIMEOUT => 10,
CURLOPT_FRESH_CONNECT => true,
CURLOPT_HTTPHEADER => array('Connection: close')
];
$ch = curl_init();
curl_setopt_array($ch, $options);
curl_exec($ch);
curl_close($ch);
echo 'Finish!!!'
} catch (Exception $e) {
echo $e->getMessage();
}
note: curl_setopt_array return true but, when perform the curl_exec my sophos firewall return error:
Error: Content could not be delivered fue to the folloeing condition: Invalid argument
when i tried to make a request by implementing curl_setopt works correctly and not get a sophos interruption:
<?php
try {
$url = 'http://127.0.0.1/index.php';
$fields = array(
'JsonData'=>json_encode(['test' => 'test'])
);
$postvars = http_build_query($fields);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postvars);
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
curl_setopt($ch, CURLOPT_FORBID_REUSE, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($ch, CURLOPT_DNS_CACHE_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: close'));
curl_exec($ch);
curl_close($ch);
echo 'Finish!!!'
} catch (Exception $e) {
echo $e->getMessage();
}
Why the second works correctly and the first does not work? From my point of view I'm doing the same...