在没有src URL的网页中显示图像

问题描述

 < img 
 
最近我了解到，我可以在网页中显示图片而无需引用图片网址。类= 公开 IMG SRC = 数据：图像/ PNG; BASE64，iVBORw0KGgoAAAANSUhEUgAAAAkAAAAJCAYAAADgkQYQAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9oIGRQbOY8MjgMAAABVSURBVBjTfc6xDcAwCETRM0rt5nbA + 49j70DDAqSLsGXyJQqkVxxwNOeMiEA + waW1VuT / inrvG7wikht8UETy2ygVMjO4O8YYTf6AqrZyUwYlygAAXo + QLmeF4c4uAAAAAElFTkSuQmCC > 
  

我有另一个小的bmp图像，我想显示，所以我打开它在vim和img来源looke如：





当我把这段代码粘贴到需要粘贴的地方时，我只能得到BMڀ

• 如何正确地转换/粘贴此代码用作图像源？
您需要使用Base64编码 p>






另外，您必须在...中更改（png）...



 < img src =data：image / png; base64，
  

根据图片文件类型。





这是一个小小的PHP函数，没有测试过。

 函数encode64（$ file）{
 $ extension = explode（。，$ fi le）; 
 $ extension = end（$ extension）; 
 
 $ binary = fread（fopen（$ file，r），filesize（$ file））; 
 $ b $ return'< img src =data：image /'.$ extension。'; base64，'。base64_encode（$ binary）。'/>'; 
} 
 
 echo encode64（test.bmp）; b 
 
 
 
 $ b $ 2 $ code> function encode64（$ file）{
 $ binary = fread（fopen（$ file，r），filesize（$ file））; 
 return（base64_encode（$ binary））; 
} 
 
 echo'< img src =data：image / bmp; base64，'。encode64（test.bmp）。'/>'; 
  

测试过我的第二个功能...效果很好...




Recently i learned that i can display images in a web page without referencing an image URL as follows :

<img class="disclosure" img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAJCAYAAADgkQYQAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9oIGRQbOY8MjgMAAABVSURBVBjTfc6xDcAwCETRM0rt5nbA+49j70DDAqSLsGXyJQqkVxxwNOeMiEA+waW1VuT/inrvG7wikht8UETy2ygVMjO4O8YYTf6AqrZyUwYlygAAXo+QLmeF4c4uAAAAAElFTkSuQmCC">

I had another small bmp image that i wanted to display, so i opened it in vim and the img source looke like:



When i paste this code where it needs to be pasted i only get "BMڀ"

• How to i convert/paste this code properly to be used as an image source?
解决方案

You need to encode it in Base64

http://www.motobit.com/util/base64-decoder-encoder.asp

Also you have to change (png) in...

according to image filetype.

Here is a little PHP function, haven't tested it.

function encode64($file){
    $extension = explode(".", $file);
    $extension = end($extension);

    $binary = fread(fopen($file, "r"), filesize($file));

    return '<img src="data:image/'.$extension.';base64,'.base64_encode($binary).'"/>';
}

echo encode64("test.bmp");

2.

    function encode64($file){
        $binary = fread(fopen($file, "r"), filesize($file));
        return(base64_encode($binary));
    }

echo '<img src="data:image/bmp;base64,'.encode64("test.bmp").'"/>';

Tested my second function... works great... http://debconf11.com/so.php

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