Most Referenced Functions
  » google_pagerank()
  » preg_replace()
  » imagecreatefrompng()
  » site_pageranks()
  » imagepng()
  » imagestring()
  » imagedestroy()
  » htmlentities()
  » imagecolorallocate()
  » fopen()
  » preg_match()
  » header()
  » getimagesize()
  » session_start()
  » ob_start()
  » preg_match_all()
  » strstr()
  » flush()
  » ob_flush()
  » str_replace()
  » array2vars()
  » htmlspecialchars()
  » strpos()
  » nl2br()
  » setcookie()
  » urlencode()
  » preg_split()
  » ereg()
  » ereg_replace()
  » var_dump()

Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email dave[AT]icemelon[D0T]c0m.

PHP Functions

Function: imagecolorallocate

(PHP 3, PHP 4, PHP 5)

imagecolorallocate -- Allocate a color for an image

Description

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

imagecolorallocate() returns a color identifier representing the color composed of the given RGB components. The image argument is the return from the imagecreate() function. red , green and blue are the values of the red, green and blue component of the requested color respectively. These parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF. imagecolorallocate() must be called to create each color that is to be used in the image represented by image .

Note: The first call to imagecolorallocate() fills the background color.

<?php

// sets background to red
$background = imagecolorallocate($im, 255, 0, 0);

// sets some colors
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);

// hexadecimal way
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
$black = imagecolorallocate($im, 0x00, 0x00, 0x00);

?>

Returns -1 if the allocation failed.

Related Function(s)

  • imagecreate()
  • imagecolorallocatealpha()
  • imagecolordeallocate()
  • Icemelon -- PHP, CSS, Javascript Tutorials, & More!
      © 2005-2010 Icemelon.com   Email: dave[AT]icemelon[D0T]c0m