imagecolormatch

Function • Return type changed in PHP 8.5

Makes the colors of the palette version of an image more closely match the true color version.

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

imagecolormatch Function synopsis

imagecolormatch(GdImage $image1, GdImage $image2): true

Parameters

$image1

TypeGdImage

A truecolor image object.

$image2

TypeGdImage

A palette image object pointing to an image that has the same size as $image1.

Return value

Typetrue

Returns true on success, false on failure

Changes to the imagecolormatch Function

PHP 8.5

  • Return type changed: bool to true
- imagecolormatch(GdImage $image1, GdImage $image2): bool
+ imagecolormatch(GdImage $image1, GdImage $image2): true

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $im1 to $image1
  • Parameter type added for parameter #1 ($image1): GdImage
  • Parameter name of parameter #2 changed: $im2 to $image2
  • Parameter type added for parameter #2 ($image2): GdImage
- imagecolormatch($im1, $im2)
+ imagecolormatch(GdImage $image1, GdImage $image2): bool

imagecolormatch 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