php-qrcode
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PHP 8.4 deprecation of implicit nullable
Running QRCode against PHP 8.4.0alpha1 gives a number of E_DEPRECATED error messages, eg
E_DEPRECATED in C:\inetpub\wwwroot\abcd\lib\chillerlan\QRCode\QRCode.php at line 80
chillerlan\QRCode\QRCode::render(): Implicitly marking parameter $data as nullable is deprecated, the explicit nullable type must be used instead