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PHP 8.5 deprecation: imagedestroy() has no effect since PHP 8.0 #4

Description

@mxmsmnv

Environment

  • PHP 8.5
  • FieldtypeQRCode.module
  • GIF QR-code output (generateRawQRCode($text, false, ...))

Problem

Generating a GIF QR code emits:

PHP Deprecated: Function imagedestroy() is deprecated since 8.5, as it has no effect since PHP 8.0

The call is currently made after imagegif($im) in FieldtypeQRCode::generateRawQRCode().

Suggested change

Only call imagedestroy() on PHP versions older than 8.0, or remove the call if PHP 8+ is the minimum supported version:

imagegif($im);
if (PHP_VERSION_ID < 80000) {
    imagedestroy($im);
}

GD objects are released automatically on PHP 8+, so this preserves compatibility with older PHP versions while avoiding the PHP 8.5 deprecation.

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