html form help - using $_POST - PHPBuilder Forums

html form help - using $_POST

bubs81

Hello all,

I've been looking at this code for ages now and can't seem to work out what is wrong. I keep getting the following message "Notice: Undefined index: name1 in C:\Program Files\EasyPHP 3.0\www\formtest.php on line 16"

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<form method="post" action="http://localhost/page2.php?img_id=17647.jpg">
Input1: <input type="text" name="name1" id="ins1"><br />
Input2: <input type="text" name="name2" id="ins2"><br />
Input3: <input type="text" name="name3" id="ins3"><br />
<input type="submit" value="submit">
</form>

<?php
$textfieldcontent1 = $_POST['name1'];
?>

</body>
</html>

Can anyone help me figure out why I'm getting this message?

Thanks in Advance!

bubs81

djjjozsi

Becouse you use a variable $_POST['name1'] , but this hasn't been set when you enter the site first.

that's a warning message, its helpful when you troubleshooting your code.

You should use empty or isset functions to know that your variable is empty or not, or has set before.

for example:

if(!empty( $_POST['name1'])) 
{
$new_value= $_POST['name1'];
}

bubs81

Thanks for that!

I've also been told that I can't set the $_POST variable on the same page. I need to do this on page2.php.

djjjozsi

you can add new value to the $_POST array, or modify it with functions,
but that won't still alive on the next page(s).