星期二, 2017-10-31 08:30 — adminshiping1

本文实例讲述了php解析base64数据生成图片的方法。分享给大家供大家参考，具体如下：

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$base64 = "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";
$img = base64_ decode($base64);//_ 后面没有空格
//$a = file_put_contents('./test.jpg', $img);//保存图片，返回的是字节数
//print_r($a);
Header( "Content-type: image/jpeg");//直接输出显示jpg格式图片
echo $img;

运行效果图如下：

PS：这里再为大家推荐几款在线图片工具供大家参考使用

图片转换为Base64编码在线工具：
http://tools.jb51.net/transcoding/img2base64

在线图片格式转换(jpg/bmp/gif/png)工具：
http://tools.jb51.net/aideddesign/picext

ICO图标在线生成工具：
http://tools.jb51.net/aideddesign/ico_img

更多关于PHP相关内容感兴趣的读者可查看本站专题：《PHP图形与图片操作技巧汇总》、《PHP基本语法入门教程》、《PHP运算与运算符用法总结》、《php面向对象程序设计入门教程》、《PHP网络编程技巧总结》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

希望本文所述对大家PHP程序设计有所帮助。

如对本文有疑问，请提交到交流社区，广大热心网友会为你解答！！点击进入社区

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来自 http://www.jb51.net/article/99232.htm

php base64数据与图片的转换

1.解析base64数据成图片

The problem is that data:image/bmp;base64, is included in the encoded contents. This will result in invalid image data when the base64 function decodes it. Remove that data in the function before decoding the string, like so.

$base64 = "data:image/bmp;base64,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";

$url = explode(',' $base64);

$a = file_put_contents('./test.png', base64_ decode($url[1]));//返回的是字节数 //_后面没有空格

print_r($a);

2.图片转成base64数据

$str = file_get_contents('./test.png');

echo base64_ encode($str); //_后面没有空格

来自 http://www.cnblogs.com/dxwhut/p/5321763.html

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php解析 base64 数据生成图片的方法

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php解析 base64 数据生成图片的方法

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