Funcții GD și Image
PHP Manual

imagecolorallocate

(PHP 4, PHP 5)

imagecolorallocateAllocate a color for an image

Descrierea

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.

Notă:

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

Parametri

image

O resursă - imagine, întoarsă de una din funcțiile de creare a imaginilor, cum ar fi 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.

Valorile întoarse

A color identifier or FALSE if the allocation failed.

Istoria schimbărilor

Versiunea Descriere
Prior to 5.1.3 Returns -1 if the allocation failed.

Exemple

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);

?>

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Funcții GD și Image
PHP Manual