CSV文件未从输入传递

Question

test.php

<form action="test2.php" method="post" enctype="multipart/form-data">
        <input type="file" name="csv_file" accept=".csv">
        <button type="submit" name="submit" value="submit">submit</button>
</form>

test2.php

<?php
if(isset($_POST['submit'])){
    if ($_FILES["csv_file"]["error"] > 0)
  {
  echo "Error: " . $_FILES["csv_file"]["error"] . "<br />";
  }
else
  {
  echo "Upload: " . $_FILES["csv_file"]["name"] . "<br />";
  echo "Type: " . $_FILES["csv_file"]["type"] . "<br />";
  echo "Size: " . ($_FILES["csv_file"]["size"] / 1024) . " Kb<br />";
  echo "Stored in: " . $_FILES["csv_file"]["tmp_name"];
  } 
}

?>

当我提交csv文件时。 test2.php页面出错了

未定义的索引：csv_file。 请检查。

Answer 1

您缺少enctype标记

<form method="post" enctype="multipart/form-data">

修改

在你的情况下：

<form action="test2.php" method="post" enctype="multipart/form-data">
        <input type="file" name="csv_file" accept=".csv">
        <button type="submit" name="submit" value="submit">submit</button>
</form>