Image Creating and editing

[bahamucio]

Help I'm stuck with this code.
<?php
heater ("Content-Type: image/gif");
$im = ImageCreate(100, 100);
$black = ImageColorAllocate($im, 0, 0, 0);
$white = ImageColorAllocate($im, 255, 255, 255);
ImageDashedLine($im, 0, 0, 99, 99,$white);
ImageGIF($im);
ImageDestroy($im);
?>
When I'm trying to complete this code the result is blank screen.It is not seems to have errors.May be I don't have a GD library, but the php_gd.dll is load.Thanks anyway.

[yelvington]

heater() ???

[drawmack]

<?php
//error reporting is set to E_ALL
error_reporting(E_ALL);

$im = imagecreate(100, 100); 
$black = imagecolorallocate($im, 0, 0, 0); 
$white = imagecolorallocate($im, 255, 255, 255);

//this function is depricated and should be replaced with
//the following two uncommented lines 
//imagedashedline($im, 0, 0, 99, 99,$white);
$st = array($white,$white,$white,$white,$black,$black,$black,$black);
imagesetstyle($im,$st);
imageline($im,0,0,99,99,IMG_COLOR_STYLED);

//header is moved to the end of the script so that
//errors will be printed to the browser window
header ("Content-Type: image/png"); 
imagepng($im); 
imagedestroy($im); 
?>

[bahamucio]

Big thanks man...I had tried many variants of that but I don't understand why it must be done at that way.It doesn's matter I'll try.By the way what's mean the word depricated cause I don't know it.Please give me a synonim.

[drawmack]

supported only for backwards compatibility, and support may (and often does) cease without warning.

[bahamucio]

I solved the problem.Just reinstalled the php and the apache and it worked.I do not know how.