PHPMailer\PHPMailer
PHPMailer::generateId()
Create a unique ID to use for boundaries.
Method of the class: PHPMailer{}
No Hooks.
Return
String
.
Usage
// protected - for code of main (parent) or child class $result = $this->generateId();
PHPMailer::generateId() PHPMailer::generateId code WP 6.4.3
protected function generateId() { $len = 32; //32 bytes = 256 bits $bytes = ''; if (function_exists('random_bytes')) { try { $bytes = random_bytes($len); } catch (\Exception $e) { //Do nothing } } elseif (function_exists('openssl_random_pseudo_bytes')) { /** @noinspection CryptographicallySecureRandomnessInspection */ $bytes = openssl_random_pseudo_bytes($len); } if ($bytes === '') { //We failed to produce a proper random string, so make do. //Use a hash to force the length to the same as the other methods $bytes = hash('sha256', uniqid((string) mt_rand(), true), true); } //We don't care about messing up base64 format here, just want a random string return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true))); }