imagescreatetruecolor有白色背景 [英] imagescreatetruecolor with a white background

问题描述

我很确定我需要使用imagefilledrectangle来获得白色背景而不是黑色......只是不确定如何。我尝试了几种方法。

I'm pretty sure I need to use imagefilledrectangle in order to get a white background instead of black on this... just not sure how. I've tried a few ways.

$targetImage = imagecreatetruecolor($thumbw,$thumbh);
imagecopyresized($targetImage,$sourceImage,0,0,0,0,$thumbWidth,$thumbHeight,imagesx($sourceImage),imagesy($sourceImage));

推荐答案

来自图片填写的PHP手册条目：

$image = imagecreatetruecolor(100, 100);

// set background to white
$white = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $white);

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