[PHP GD库]②--GD库操作步骤

Paste_Image.png

http://php.net/manual/zh/book.image.php

imagecreatetruecolor

imagecolorallocate

imagechar

imagestring

header

imagejpeg

imagedestroy

//创建画布
$width = 500;
$height = 300;
$image = imagecreatetruecolor($width, $height);

//创建颜色
$red = imagecolorallocate($image, 255, 0, 0);
$blue = imagecolorallocate($image, 0, 0, 255);
$white = imagecolorallocate($image, 255, 255, 255);

//开始绘画
imagechar($image, 40, 50, 100, 'K', $red);
imagechar($image, 40, 100, 200, 'i', $blue);
imagestring($image, 40, 200, 150, 'imooc', $white);

//显示图片
header('content-type:image/jpeg');
imagejpeg($image);//imagegif() imagepng()

//销毁资源
imagedestroy($image);

Paste_Image.png