PHP file upload sample code sharing-PHP Tutorial-php.cn

PHP file upload sample code sharing

黄舟

Release： 2023-03-16 21:02:02

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    </head>
    <body>
    <!--上传文件 enctype="multipart/form-data"指的是编码方式为上传多种类型文件和数据流-->
    <form method="post" action="123.php" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" value="上传">
    </form>
    </body>
    </html>

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File processingPage

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

var_dump($_FILES);
//文件处理要实现的几点
//1.是否有错误
//2.文件类型是否符合要求
//3.文件大小是否符合要求
//4.文件名是否重复
//$types = [&#39;image/jpeg&#39;,&#39;image/png&#39;];
if (!$_FILES[&#39;file&#39;][&#39;error&#39;]){
    if ($_FILES[&#39;file&#39;][&#39;type&#39;] == &#39;image/jpeg&#39;){
        if ($_FILES[&#39;file&#39;][&#39;size&#39;]<200000){
//文件传到文件夹中，可以拼接时间戳，用户名等防止文件名重复
            $file_name = "./upload/2017-10-31/".$_FILES[&#39;file&#39;][&#39;name&#39;];
            if (!file_exists($file_name)){
                move_uploaded_file($_FILES[&#39;file&#39;][&#39;tmp_name&#39;],$file_name);
//                $filename=iconv("UTF-8","",$file_name);
            }else{
                echo "文件名重复";
            }
        }else{
            echo "文件过大";
        }
    }else{
        echo "文件格式错误";
    }
}
//实验过程中出现因为图片汉字命名报错！！！

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