imagesavealpha

Function • Return type changed in PHP 8.5

Whether to retain full alpha channel information when saving images.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1-8.2
PHP 8.3
PHP 8.4
PHP 8.5
Improved
PHP 8.6

imagesavealpha Function synopsis

imagesavealpha(GdImage $image, bool $enable): true

Parameters

$image

TypeGdImage

$enable

Typebool

Whether to save the alpha channel or not. Defaults to false.

Return value

Typetrue

Returns true on success, false on failure

Changes to the imagesavealpha Function

PHP 8.5

  • Return type changed: bool to true
- imagesavealpha(GdImage $image, bool $enable): bool
+ imagesavealpha(GdImage $image, bool $enable): true

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $im to $image
  • Parameter type added for parameter #1 ($image): GdImage
  • Parameter name of parameter #2 changed: $save to $enable
  • Parameter type added for parameter #2 ($enable): bool
- imagesavealpha($im, $save)
+ imagesavealpha(GdImage $image, bool $enable): bool

imagesavealpha Function Availability

PHP VersionAvailability
PHP 8.6Future Release Yes
PHP 8.5Upcoming Release Yes
PHP 8.4Supported (Latest) Yes
PHP 8.3Supported Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes