如果已经存在php代码，则自动重命名文件名

upload.php

<form enctype="multipart/form-data" action="uploader.php" method="POST">
Choose a file: <input name="uploadedfile" type="file" /><br />
Choose a file1: <input name="uploadedfile1" type="file" /><br />
<input type="submit" value="Upload File" />
</form>

mysql_select_db("test");


$target_path = "uploads/" . basename( $_FILES['uploadedfile']['name']);
$currentfile = $_FILES['uploadedfile']['name']; 
$target_path1 = "upload1/" . basename( $_FILES['uploadedfile1']['name']);
$currentfile1 = basename( $_FILES['uploadedfile1']['name']); 


$dbfiles = mysql_query("SELECT * FROM new WHERE amount='$currentfile' || amount='$currentfile1'");
if(mysql_num_rows($dbfiles) > 0 )
{ 

//what code should i place here??    

}
else
{
        if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
        {
                echo "file1: ".$_FILES['uploadedfile']['name']."<br>";
                $file1 = basename( $_FILES['uploadedfile']['name']);
                mysql_query("insert into new (amount) values('$file1')");   
        }
        if(move_uploaded_file($_FILES['uploadedfile1']['tmp_name'], $target_path1))
        {
                echo "file2: ".basename( $_FILES['uploadedfile1']['name']);
                $file2 = basename( $_FILES['uploadedfile1']['name']);
                mysql_query("insert into new (amount) values('$file2')");   
        }
}

选择一个文件：

选择一个文件1:

表单upload.php的图像

uploader.php

<form enctype="multipart/form-data" action="uploader.php" method="POST">
Choose a file: <input name="uploadedfile" type="file" /><br />
Choose a file1: <input name="uploadedfile1" type="file" /><br />
<input type="submit" value="Upload File" />
</form>

mysql_select_db("test");


$target_path = "uploads/" . basename( $_FILES['uploadedfile']['name']);
$currentfile = $_FILES['uploadedfile']['name']; 
$target_path1 = "upload1/" . basename( $_FILES['uploadedfile1']['name']);
$currentfile1 = basename( $_FILES['uploadedfile1']['name']); 


$dbfiles = mysql_query("SELECT * FROM new WHERE amount='$currentfile' || amount='$currentfile1'");
if(mysql_num_rows($dbfiles) > 0 )
{ 

//what code should i place here??    

}
else
{
        if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
        {
                echo "file1: ".$_FILES['uploadedfile']['name']."<br>";
                $file1 = basename( $_FILES['uploadedfile']['name']);
                mysql_query("insert into new (amount) values('$file1')");   
        }
        if(move_uploaded_file($_FILES['uploadedfile1']['tmp_name'], $target_path1))
        {
                echo "file2: ".basename( $_FILES['uploadedfile1']['name']);
                $file2 = basename( $_FILES['uploadedfile1']['name']);
                mysql_query("insert into new (amount) values('$file2')");   
        }
}

mysql_选择_数据库（“测试”）；
$target_path=“uploads/”。basename（$_文件['uploadedfile']['name']）；
$currentfile=$\u文件['uploadedfile']['name']；
$target_path1=“upload1/”。basename（$_文件['uploadedfile1']['name']）；
$currentfile1=basename（$_文件['uploadedfile1']['name']）；
$dbfiles=mysql_查询（“选择*FROM new WHERE amount='$currentfile'| | amount='$currentfile1'”）；
if（mysql_num_rows（$dbfiles）>0）
{ 
//我应该在这里放置什么代码？？
}
其他的
{
如果（移动上传的文件（$上传文件['uploadedfile']['tmp\U名称']，$target\U路径））
{
echo“file1:”.$\u文件['uploadedfile']['name'].“
”；
$file1=basename（$_文件['uploadedfile']['name']）；
mysql_查询（“插入新的（金额）值（“$file1”）”；
}
如果（移动上传的文件（$\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
{
echo“file2:”.basename（$_文件['uploadedfile1']['name']）；
$file2=basename（$_文件['uploadedfile1']['name']）；
mysql_查询（“插入新的（金额）值（“$file2”）”；
}
}

我需要在if条件

if（mysql_num_rows（$dbfiles）>0）{}

中放置什么代码，以便如果上载的文件名已经存在，文件应该自动更改其文件名，例如存在abc.jpg，然后有人上传了一个新文件，但名称和类型与abc.jpg相同。。那么新文件必须是abc_1.jpg。。。如果有人上传的内容与abc.jpg相同，则名称应为abc_2.jpg。。 abc_1.jpg必须是将保存到mysql的名称，abc_1.jpg必须是将保存到准备好的文件夹的文件。。thx

我在这里得到了想法和代码

试试这个

<?php
$target_path = "uploads/" . basename( $_FILES['uploadedfile']['name']); 
$target_path1 = "uploads/" . basename( $_FILES['uploadedfile1']['name']); 

if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
    echo "The file ".  basename( $_FILES['uploadedfile']['name']). 
    " has been uploaded";
}
else{
    echo "There was an error uploading the file, please try again!";
}

if(move_uploaded_file($_FILES['uploadedfile1']['tmp_name'], $target_path1)) {
    echo "The file ".  basename( $_FILES['uploadedfile1']['name']). 
    " has been uploaded";
}
else{
    echo "There was an error uploading the file1, please try again!";
}
?>

---

用这样的东西进行测试

<?php
    $target_path = "uploads/" . basename( $_FILES['uploadedfile']['name']);
    $target_path1 = "uploads/" . basename( $_FILES['uploadedfile1']['name']);
    $file_saved = false;

    if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
    {
        echo "The file ".  basename( $_FILES['uploadedfile']['name'])." has been uploaded";
        $file_saved = true;
    }
    if(move_uploaded_file($_FILES['uploadedfile1']['tmp_name'], $target_path1))
    {
        echo "The file ".  basename( $_FILES['uploadedfile1']['name']). 
" has been uploaded";
        $file_saved = true;
    }
    if (!$file_saved)
    {
        echo "There was an error uploading the file, please try again!";
    }
?>

将其设置为两个独立的

if

语句，而不是

if/elseif

。如果文件1上载，文件2将不会上载，因为它不需要评估

elseif

条件。您是否意识到只有

If

或

elseif

将被处理？只有一个分支可以被激活（事实上，情况就是发生了什么）。是的，一秒钟前在发布问题后，我尝试将ifelse改为if Only，它起了作用（我没有看你的消息伙计们），我想我们在同一时间得出了相同的结论=P