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imagecolorclosestalpha (PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8) imagecolorclosestalpha — Get the index of the closest color to the specified color + alpha
imagecolorclosestalpha 15 nov. 2018 19 fois (PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8) imagecolorclosestalpha — Retourne la couleur la plus proche, en tenant compte du canal alpha
Jul 11, 2025 · The imagecolorclosestalpha () function is an inbuilt function in PHP which is used to get the index of closest color with alpha value in the given image. This function returns the index of the color in the palette of the image which is closest to the specified RGB value and alpha level.
Description int imagecolorclosestalpha ( resource image, int red, int green, int blue, int alpha)
Mar 15, 2026 · The imagecolorclosestalpha () function finds the index of the closest color in an image palette that matches the specified RGBA values. This function is particularly useful when working with palette-based images where you need to find the best color match including transparency.
imagecolorclosestalpha () retourne l'index de la couleur, dans la palette de l'image image, la plus proche de la couleur spécifiée par les autres paramètres, au format RGB et de canal alpha alpha. Note : Cette fonction requiert la bibliothèque GD 2.0.1 ou supérieure. Voir aussi imagecolorexactalpha ().
Returns the index of the color in the palette of the image which is "closest" to the specified RGB value and alpha level.
