php - 在 php 中上传图片 base64 时出现 2174 错误

Question

您好，请使用以下代码

if($data['photo']!='')
{
    define("UPLOAD_DIR", "admin/alumni_image/");
    $photo = $data['photo'];// THIS IS YOUR BASE64 ENCODED STRING
    $photo = str_replace('data:image/png;base64,', '', $photo);
    $photo = str_replace(' ', '+', $photo);
    $data = base64_decode($photo);
    $time =microtime(true);
    $micro_time=sprintf("%06d",($time - floor($time)) * 1000000);
    $date=new DateTime( date('Y-m-d H:i:s.'.$micro_time,$time) );
    $currentDatetime=$date->format("Y-m-d H:i:s.u"); 
    $file = UPLOAD_DIR . md5($currentDatetime) . '.png';
    $array=explode("/",$file);
    $photoName=$array[2];
    $success = file_put_contents($file, $data);

    echo $success;
    $query_photo = "update alumni set photo = '".$photoName."' where alumni_id = '".$insert_id."'";
    $query_run=  mysql_query($query_photo);
}

但我收到错误 2174。我增加了 php 配置文件的大小，例如

ini_set('post_max_size', '64M');
ini_set('upload_max_filesize', '64M');  

Answer 1

file_put_contents的返回值is not an error code :

This function returns the number of bytes that were written to the file, or FALSE on failure.

因此您的代码似乎没有任何问题。