如何使用 Foreach 为每个用户上传不同名称的相同文件答案

【问题标题】：How to Upload the Same File in Different Names for Each Users Using Foreach如何使用 Foreach 为每个用户上传不同名称的相同文件
【发布时间】：2020-05-03 01:40:25
【问题描述】：

通过 foreach 循环工作的其他查询。但是为数组的第一个索引上传文件。这不是多个文件上传。我想为每个用户上传不同名称的相同文件。

    foreach($_POST['groupmem'] as $user){
    //Some Queries

    $filename2 = str_replace(" ", "_","{$user}.{$_FILES['proposal']['name']}");
    $destination2 = '../img/proposal/' . $filename2;
    $extension2 = pathinfo($filename2, PATHINFO_EXTENSION);
    $file2 = $_FILES['proposal']['tmp_name'];
    $size2 = $_FILES['proposal']['size'];
    if (!in_array($extension2, ['zip', 'pdf', 'docx'])) {
        echo "You file extension must be .zip, .pdf or .docx";
    } elseif ($_FILES['proposal']['size'] > 200000000) { // file shouldn't be larger than 200Megabyte
        echo "File too large!";
    } else {
        if (move_uploaded_file($file2, $destination2)) {
            $sql = "UPDATE project SET proposal_name='$filename2' WHERE u_id='{$user}' ";
            if (mysqli_query($conn, $sql)) {
                echo "File uploaded successfully";
            }
        } else {
            echo "Failed to upload file.";
        }
    }
    }

【问题讨论】：

你不能在循环内做 move_uploaded_file
您只需进行第一次上传，然后在 move_uploaded_file 之后复制不同文件名的文件
@AntonioAbrantes 感谢老兄的解决方案。它有效。你节省了我的时间。谢谢。
天哪，别忘了点击绿旗关闭问题
感谢您的了解.. @Dharman 我如何跳过除了 mysqli_real_escape_string 之外的那种 SQL 注入。

标签： php loops file foreach upload

【解决方案1】：

你不能在循环内做 move_uploaded_file

$user1 = $_POST['groupmem'][0];
$filename1 = str_replace(" ", "_","{$user1}.{$_FILES['proposal']['name']}");
$destination1 = '../img/proposal/' . $filename1;
$extension1 = pathinfo($filename1, PATHINFO_EXTENSION);
$file1 = $_FILES['proposal']['tmp_name'];
$size1 = $_FILES['proposal']['size'];
if (!in_array($extension1, ['zip', 'pdf', 'docx'])) {
    echo "You file extension must be .zip, .pdf or .docx";
} elseif ($_FILES['proposal']['size'] > 200000000) { // file shouldn't be larger than 200Megabyte
    echo "File too large!";
} else {
    if (move_uploaded_file($file1, $destination1)) {

    foreach($_POST['groupmem'] as $user){
        $filename2 = str_replace(" ", "_","{$user}.{$_FILES['proposal']['name']}");
        $destination2 = '../img/proposal/' . $filename2;
        if ($user <> $user1) {
            if (!copy($destination1, $destination2))  echo "failed to copy $file...\n";
        }

        $sql = "UPDATE project SET proposal_name='$filename2' WHERE u_id='{$user}' ";
        if (mysqli_query($conn, $sql)) {
        echo "File uploaded successfully";
        }
    }

    } else {
        echo "Failed to upload file.";
    }

}

【讨论】：