PHP接收android传过来的图片

 function saveBase64Img($logo)
{
    $ret = ‘‘;
    preg_match(‘/^(data:\s*image\/(\w+);base64,)/‘, $logo, $result);
    $type = $result[2];
    $year = date(‘Ymd‘);
    $path = "public/uploads/certity/$year";
    if(!is_dir($path)){
        mkdir(iconv("UTF-8", "GBK", $path),0777,true);
    }
    //sudi_random_code(10) 生成随机字符串的函数
    $imgname = sudi_random_code(10).date(‘ymd‘);
    $new_file =$path.‘/‘. $imgname . "." . $type;

    $a =file_put_contents($new_file, base64_decode(str_replace($result[1],‘‘, $logo)));

    if($a){
       return $year.‘/‘.$imgname . "." . $type;
    }
    return $ret;

}