在PHP中使用用户输入变量设置文件名 [英] Set file name using user inputted variable in PHP

问题描述

我只是想知道如何使用变量的名称在PHP中设置文件名？当我运行下面的代码时：

$ $ p $ $ code $<？php
if（$ _POST）{
$ filename = $ _POST ['firstName'];

header（Content-Type：application / txt）;
header（'Content-Disposition：attachment; filename =$ filename.txt'）;

echoWelcome，;
echo $ _POST ['firstName']。 。 $ _POST [的lastName];

exit;
} else {

？>

< form action =method =post>
名字：< input type =textname =firstName/>< br />
姓氏：< input type =textname =lastName/>< br />
< input type =submitname =submitvalue =Submit me！ />
< / form>

<？php}？>

文件名始终设置为 $ filename.txt ，但我希望它是 Adam.txt 或 Brian.txt 等等在用户输入上。

解决方案

用替换，所以变量替换工作

  header（Content-Disposition：attachment; filename = \$ filename.txt \）; 
  

或者如果您想使用''

  header（'Content-Disposition：attachment; filename =''。$ filename。'。txt'）; 
  

I'm just wondering how I can use the name of a variable to set a file name in PHP? When I run the following code:

<?php
if ($_POST) {
    $filename = $_POST['firstName'];

    header("Content-Type: application/txt");        
    header('Content-Disposition: attachment; filename="$filename.txt"');

    echo "Welcome, ";
    echo $_POST['firstName']. " " . $_POST['lastName'];

    exit;
} else {

?>

<form action="" method="post">
    First Name: <input type="text" name="firstName" /><br />
    Last Name: <input type="text" name="lastName" /><br />
    <input type="submit" name="submit" value="Submit me!" />
</form>

<?php } ?>

The file name is always set to "$filename.txt", but I'd like it to be Adam.txt, or Brian.txt etc depending on the user input.

解决方案

Replace the '' with "" so variable substitution works

header("Content-Disposition: attachment; filename=\"$filename.txt\"");

or if you want to use ''

header('Content-Disposition: attachment; filename="'.$filename.'.txt"');

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