imagegammacorrect

FunctionReturn type changed in PHP 8.5

Apply a gamma correction to a GD image.

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

imagegammacorrect Function synopsis

imagegammacorrect(
    GdImage $image,
    float $input_gamma,
    float $output_gamma
  ): true

Parameters

$image

TypeGdImage

$input_gamma

Typefloat

The input gamma.

$output_gamma

Typefloat

The output gamma.

Return value

Typetrue

Returns true on success, false on failure

Changes to the imagegammacorrect Function

PHP 8.5

  • Return type changed: bool to true
  imagegammacorrect(
      GdImage $image,
      float $input_gamma,
      float $output_gamma
-   ): bool
+   ): 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: $inputgamma to $input_gamma
  • Parameter type added for parameter #2 ($input_gamma): float
  • Parameter name of parameter #3 changed: $outputgamma to $output_gamma
  • Parameter type added for parameter #3 ($output_gamma): float
  imagegammacorrect(
-     $im,
+     GdImage $image,
-     $inputgamma,
+     float $input_gamma,
-     $outputgamma
+     float $output_gamma
-   )
+   ): bool

imagegammacorrect 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