PHP将图片转base64编码以及base64图片转换为图片并保存代码

时间:2022-11-13 00:19:51
图片转base64编码

/*图片转换为 base64格式编码*/
$img = 'uploads/01.png';
$base64_img = base64EncodeImage($img);
echo '<img src="' . $base64_img . '" />';

function base64EncodeImage ($image_file) {
  $base64_image = '';
  $image_info = getimagesize($image_file);
  $image_data = fread(fopen($image_file, 'r'), filesize($image_file));
  $base64_image = 'data:' . $image_info['mime'] . ';base64,' . chunk_split(base64_encode($image_data));
  return $base64_image;
}
 

  

 base64图片转换为图片并保存

/* base64格式编码转换为图片并保存对应文件夹 */
function base64_image_content($base64_image_content,$path){
  //匹配出图片的格式
  if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_image_content, $result)){
    $type = $result[2];
    $new_file = $path."/".date('Ymd',time())."/";
    if(!file_exists($new_file)){
      //检查是否有该文件夹,如果没有就创建,并给予最高权限
      mkdir($new_file, 0700);
    }
    $new_file = $new_file.time().".{$type}";
    if (file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_image_content)))){
      return '/'.$new_file;
    }else{
      return false;
    }
  }else{
    return false;
  }
}

echo base64_image_content($base64_img,"uploads/");