Question

我试图通过PHP将上传的文件存储在MySQL数据库中。执行查询时，它返回true。但是，在重新提交文件时，上传的文件为0字节。请帮我解决这个问题。我已使用以下代码执行查询。

package javapractice2;

import java.util.ArrayList;

import java.util.Collections;

public class Mainclass {

    public static void main(String[] args) {         

        ArrayList<Player> ply = new ArrayList<Player>();

        ply.add(new Player ("kuldeep", 85));
        ply.add(new Player ("jadeja", 75));
        ply.add(new Player ("dohni", 48));
        ply.add(new Player ("kozhi", 78));
        ply.add(new Player ("raina", 48));
        ply.add(new Player ("sachin", 85));
        ply.add(new Player ("yuvaraj", 100));
        ply.add(new Player ("Ajinkya", 85));
        ply.add(new Player ("baji", 75));
        ply.add(new Player ("hardik", 55));

        Collections.sort(ply, new Sortbyname());

        for(int i=0; i<ply.size(); i++){
            System.out.println(ply.get(i));
        }


    }
}

Answer 1

你正在混淆$ _POST和$ _FILE。将您的代码更新为以下内容：

if(isset($_FILE['file'])){
     $cv_file = file_get_contents($_FILES['file']);
}else{
    echo "file not uploaded";
}

通过PHP上传为Blob格式的文件到My SQL有0个字节

1 个答案: