Upload file to AEM Dam via php script

Hello,

I am trying to upload some file via a php script .

Here is my script

// Check if file exists
if (file_exists($file_path)) {
// Initialize cURL session
$ch = curl_init();

// Set cURL options
curl_setopt($ch, CURLOPT_URL, $aem_url . "/" . $filename);
curl_setopt($ch, CURLOPT_USERPWD, $aem_user . ":" . $aem_password);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, array('file' => new CURLFile($file_path)));

// Execute cURL session
$response = curl_exec($ch);

// Check for errors
if (curl_errno($ch)) {
echo "Error uploading file " . $filename . ": " . curl_error($ch) . "<br>";
} else {
echo "File " . $filename . " uploaded successfully.<br>";
}

// Close cURL session
curl_close($ch);
} else {
echo "File " . $filename . " does not exist.<br>";
}

and this is the error I am getting.

Upload error: SSL certificate problem: unable to get local issuer certificate

Should I first generate an API token or what am I missing?

Thanks for your advices

Cedric