GD Функции
PHP Manual

imagecolorallocate

(PHP 4, PHP 5)

imagecolorallocateAllocate a color for an image

Описание

int imagecolorallocate ( resource $image , int $red , int $green , int $blue )

Returns a color identifier representing the color composed of the given RGB components.

imagecolorallocate() must be called to create each color that is to be used in the image represented by image .

Забележка: The first call to imagecolorallocate() fills the background color in palette-based images - images created using imagecreate().

Параметри

image

Ресурс на изображение, върнат от някоя от функциите за създаване на изображения като например imagecreatetruecolor().

red

Value of red component.

green

Value of green component.

blue

Value of blue component.

These parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF.

Връщани стойности

A color identifier or FALSE if the allocation failed.

Дневник на промените

Версия Описание
Prior to 5.1.3 Returns -1 if the allocation failed.

Примери

Example #1 imagecolorallocate() example

<?php

$im 
imagecreate(100100);

// sets background to red
$background imagecolorallocate($im25500);

// sets some colors
$white imagecolorallocate($im255255255);
$black imagecolorallocate($im000);

// hexadecimal way
$white imagecolorallocate($im0xFF0xFF0xFF);
$black imagecolorallocate($im0x000x000x00);

?>

Вж. също


GD Функции
PHP Manual