提交表单并写入多个表单字段的文件

Question

I have a code of a form that writes the "email" of user into a .txt file in my server.

Here are some things I want to do: Make the form have more than one variable (Like, one line to "name" and another one to "email"), put the form writing in .txt prefixes before the "input" texts, and make the output .txt file have line breaks between the contents of each variable.

Here is my code currently

<?php
if(isset($_POST['submit']))
{
   $email = $_POST['email'];
   $file = fopen("emaillist.txt","a+");
   fwrite($file,$email);
   fclose($file); 
   print_r(error_get_last());
}
?>
<form action= "" method="post" name="form">
   Email:
   <input type="email" name="email">
   <br>
   <br>
   <input type="submit" name="submit" value="submit">
   <br>
</form>

Can you help me? Thank you all.

Answer 1

You can add another input to your form. In your code, you have <input type="email" name="email"> for the email address. Just add a <input type="text" name="name"> for the name. The field's name (name="xxx") is the key that you can use in PHP in $_POST['xxx'] to get the information for another line.

Did I understand your question "How can I put the form writting in .txt prefixes before the "input" texts?" correct that you want to have an output in your file like "Email: x@x.x"?

To add a line break, you can write " " (if you use a Windows System, use " ") in your strings.

Instead of fopen(), fwrite() and fclose() you can use file_put_contents() which makes your code a bit easier to read.

You can try this code:

<?php
if(isset($_POST['submit']))
{
  $name = $_POST['name'];
  $email = $_POST['email'];
  $new_content = "
Name: " . $name;
  $new_content .= "
Email: " . $email;
  file_put_contents('emaillist.txt', $new_content, FILE_APPEND);
  print_r(error_get_last());
}
?>
<form action="" method="post" name="form">
  Name:
  <input type="text" name="name"><br>
  Email:
  <input type="email" name="email">
  <br>
  <br>
  <input type="submit" name="submit" value="submit"><br>
</form>