imagegammacorrect
Function • Return type changed in PHP 8.5
Apply a gamma correction to a GD image.
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:
booltotrue
imagegammacorrect(
GdImage $image,
float $input_gamma,
float $output_gamma
- ): bool
+ ): true PHP 8.0
- Return type added:
bool - Parameter name of parameter #1 changed:
$imto$image - Parameter type added for parameter #1 (
$image):GdImage - Parameter name of parameter #2 changed:
$inputgammato$input_gamma - Parameter type added for parameter #2 (
$input_gamma):float - Parameter name of parameter #3 changed:
$outputgammato$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
imagegammacorrect Function Availability| PHP Version | Availability |
|---|---|
| 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 |