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php生成图形验证码

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WBOYOriginal
2016-06-13 09:48:13922browse

关于php生成图形验证码我们讲过很多,这是一个非常简单的适合于php入门者的教程,一个本的用php生成验证码的实例代码。

关于php教程生成图形验证码我们讲过很多,这是一个非常简单的适合于php入门者的教程,一个本的用php生成验证码的实例代码。

$height = 300;
$width = 300;
//创建背景图
$im = ImageCreateTrueColor($width, $height);
//分配颜色
$white = ImageColorAllocate ($im, 255, 255, 255);
$blue = ImageColorAllocate ($im, 0, 0, 64);
//绘制颜色至图像中
ImageFill($im, 0, 0, $blue);
//绘制字符串:Hello,PHP
ImageString($im, 10, 100, 120, 'Hello,PHP', $white);
//输出图像,定义头
Header ('Content-type: image/png');
//将图像发送至浏览器
ImagePng($im);
//清除资源
ImageDestroy($im);
?>

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