!DOCTYPE html>
html lang="en">
head>
 meta charset="UTF-8">
 title>Title/title>

/head>
body>
!--上傳文件 enctype="multipart/form-data"指的是編碼方式為上傳多種類型文件和數(shù)據(jù)流-->

form method="post" action="123.php" enctype="multipart/form-data">
 input type="file" name="file">
 input type="submit" value="上傳">
/form>
/body>
/html>

?php
/**
 * Created by fcc
 * User: Administrator
 * Date: 2017/10/31
 * Time: 10:33
 */

var_dump($_FILES);
//文件處理要實(shí)現(xiàn)的幾點(diǎn)
//1.是否有錯(cuò)誤
//2.文件類型是否符合要求
//3.文件大小是否符合要求
//4.文件名是否重復(fù)
//$types = ['image/jpeg','image/png'];
if (!$_FILES['file']['error']){
 if ($_FILES['file']['type'] == 'image/jpeg'){
  if ($_FILES['file']['size']200000){
//文件傳到文件夾中，可以拼接時(shí)間戳，用戶名等防止文件名重復(fù)
   $file_name = "./upload/2017-10-31/".$_FILES['file']['name'];
   if (!file_exists($file_name)){
    move_uploaded_file($_FILES['file']['tmp_name'],$file_name);
//    $filename=iconv("UTF-8","",$file_name);
   }else{
    echo "文件名重復(fù)";
   }
  }else{
   echo "文件過(guò)大";
  }
 }else{
  echo "文件格式錯(cuò)誤";
 }

}
//實(shí)驗(yàn)過(guò)程中出現(xiàn)因?yàn)閳D片漢字命名報(bào)錯(cuò)！！！