利用base64对图片进行编码及解码

<?php $image_file = &#39;./uploads/14391214729290.jpg&#39;;

        //读取图片文件，并转换成base64编码格式
        $image_info = getimagesize($image_file);
        $base64_image_content = "data:{$image_info[&#39;mime&#39;]};base64," . chunk_split(base64_encode(file_get_contents($image_file)));
        //echo $base64_image_content;

        //将base64字符串解码并保存为原来图片格式
        if (preg_match(&#39;/^(data:\s*image\/(\w+);base64,)/&#39;, $base64_image_content, $result)){
            $type = $result[2];
            $new_file = "./newfile.{$type}";
            if (file_put_contents($new_file, base64_decode(str_replace($result[1], &#39;&#39;, $base64_image_content)))){
                echo &#39;新文件保存成功：&#39;, $new_file;
            }

        }
        //显示图片
        <img  src="<?php echo $base64_image_content;? alt="利用base64对图片进行编码及解码" >" />
 ?>