$_POST 变量不适用于 $_FILES 和 multipart/form-data

$_POST variables not working with $_FILES and multipart/form-data

问题: 每当我将 HTML 表单上的 enctype 更改为 multipart/form-data 时,$_POST 变量不会填充在我的 php 脚本中。用户在填写表格的同时上传文件,文件上传到服务器,但 $_POST 变量未填充。

代码:

我的 HTML 收集数据的表单 text/picture。

index.php

<form name="myForm" METHOD="POST" ACTION="" enctype="multipart/form-data">
  <input type="text" name="text1" id="text1">
  <input type="text" name="text2" id="text2">
  <input type="file" name="filebutton" id="filebutton">
  <input type="submit" name="submit" id="submit">
</form>

我的 php 脚本试图更新我的 MySQL 数据库,并将我的文件上传到我的 Ubuntu 服务器上。

upload.php

<?php
$uploaddir = "/var/www/img/pictures/";
$uploadfile = $uploaddir . basename($_FILES['filebutton']['name']);
move_uploaded_file($_FILES['filebutton']['tmp_name'], $uploadfile);
if (isset($_POST['filebutton'])) {  
    $pictureUpdate = ", PICTURE_FILEPATH = '" . $_POST['filebutton'] . "'";
} else {
    $pictureUpdate = "";
}
$connection = mysqli_connect("1.2.3.4","xxxx","xxxx","xxxx") or die("Caonnot connect to database.");
$update = "UPDATE table SET COLUMN1='" . $_POST['text1'] . "', COLUMN2='" . $_POST['text2'] . "' . $pictureUpdate . " where COLUMN3 = " . $_POST['text1'] . " ";
$update_sql = mysqli_query($connection, $update) or die("Cannot connect to mysql table. ". $update);
header("Location: " . $_SERVER['REQUEST_URL'] . "?success=1");
exit();

我尝试过的: 这是第一次这样做,所以我在这里有点随意,因为我似乎无法让它工作。

如何使 $_POST 数据正常工作,以及从同一表单上传文件?

您只需要将您的文件内容移动到您的 if 语句中,并将 $_POST['filebutton'] 更改为 $_FILES['filebutton']

每当您上传文件时,文件都会填充到 $_FILES 全局变量中,其他字段会填充到 $_POST 全局变量中。

<?php
$uploaddir = "/var/www/img/pictures/";
if (isset($_FILES['filebutton'])) {  
    $uploadfile = $uploaddir . basename($_FILES['filebutton']['name']);
    move_uploaded_file($_FILES['filebutton']['tmp_name'], $uploadfile);
    $pictureUpdate = ", PICTURE_FILEPATH = '" . $_FILES['filebutton'] . "'";
} else {
    $pictureUpdate = "";
}
$connection = mysqli_connect("1.2.3.4","xxxx","xxxx","xxxx") or die("Caonnot connect to database.");
$update = "UPDATE table SET COLUMN1='" . $_POST['text1'] . "', COLUMN2='" . $_POST['text2'] . "' . $pictureUpdate . " where COLUMN3 = " . $_POST['text1'] . " ";
$update_sql = mysqli_query($connection, $update) or die("Cannot connect to mysql table. ". $update);
header("Location: " . $_SERVER['REQUEST_URL'] . "?success=1");
exit();

试试这个代码,看看它能为你做什么,如果这个有效而另一个无效,那么这意味着你的代码还有更多我们需要解决的问题。

test.php

<form name="myForm" METHOD="POST" ACTION="" enctype="multipart/form-data">
  <input type="text" name="text1" id="text1">
  <input type="text" name="text2" id="text2">
  <input type="file" name="filebutton" id="filebutton">
  <input type="submit" name="submit" id="submit">
</form>
<xmp><?php if ($_SERVER['REQUEST_METHOD'] === 'POST') { var_dump($_FILES, $_POST); } ?></xmp>

output

array(1) {
  ["filebutton"]=>
  array(5) {
    ["name"]=>
    string(21) "scanParser.properties"
    ["type"]=>
    string(24) "application/octet-stream"
    ["tmp_name"]=>
    string(14) "/tmp/phpRm1Ytp"
    ["error"]=>
    int(0)
    ["size"]=>
    int(264)
  }
}
array(3) {
  ["text1"]=>
  string(1) "1"
  ["text2"]=>
  string(1) "2"
  ["submit"]=>
  string(6) "Submit"
}