php get method problem

Question

<?php

echo '<h1>Message area</h1>';

echo '<form action="message.php" method="GET ">';

echo 'Username:<input type="text" name="username" /><br />';

echo 'Message:<textarea name="content"></textarea><br />';

echo '<input type="submit" value= "Confirm" />';

echo '</form>';

##$username=$_GET['username'];

$content=$_GET['content'];

$file=fopen('message.txt','a');

$w_content="$username : $content";

fwrite($file,$w_content);

//fclose($file);

echo file_get_contents('message.txt');

##?>

Why can’t I receive the $username and $content variables in the form?

Answer 1

I took your code and tested it locally. I can receive the parameters. I will test step by step to see where the problem is.

Answer 2

<?phpecho '<h1>留言区</h1>';echo '<form  method="GET">';echo '用户名:<input type="text" name="username" /><br />';echo '留言：<textarea name="content"></textarea><br />';echo '<input type="submit" value="确认" />';echo '</form>';$username=isset($_GET['username']);$content=isset($_GET['content']);$file=fopen('message.txt','a');$w_content="$username : $content";fwrite($file,$w_content);//fclose($file);echo file_get_contents('message.txt');?>建议在传值的时候加上isset方法 

Answer 3

No problem with passing value. I tested it locally but the echo data should be wrong

Answer 4

Is

undefined index?

Answer 5

What is the error message?

Answer 6

Are you sure the action in your form points to the correct direction?