Display input text value that is stored on a variable

Question

Is there something wrong in this simple code? I'm trying to store input type weight into a php variable $w....tried echo $w to check if it has been stored but it doesn't display anything..:p

<html>
<head>
<title></title>
</head>
<body>
<form action='' method='POST'>
    <label>Enter Weight: </label><input type='text' name="weight">
</form>
<?php 
   $w=$_POST["weight"]; 
   echo $w; 
?>

use `isset()` or `!empty()`. [you should be getting an undefined index notice.](http://php.net/manual/en/function.error-reporting.php) — Funk Forty Niner, Jun 21 '15 at 03:03
`if (isset($_POST["weight"])) { $w=$_POST["weight"]; echo $w; }` Always check and assign ! — Sulthan Allaudeen, Jun 21 '15 at 03:05
possible duplicate http://stackoverflow.com/questions/4261133/php-notice-undefined-variable-and-notice-undefined-index — Funk Forty Niner, Jun 21 '15 at 03:09
no error..it just wont display $w...$w is the php variable that supposed to have the value of the inputted weight... — Ron Manuela, Jun 21 '15 at 03:20

score 0 · Accepted Answer · answered Jun 21 '15 at 03:22

0

It should work as expected

What you have to do is to assign after checking is done

if (isset($_POST['weight']))
{ 
   $w=$_POST["weight"]; 
   echo $w; 
}

So your code should be

<html>
<head>
<title></title>
</head>
<body>
<form action='' method='POST'>
<label>Enter Weight: </label><input type='text' name="weight">
<input type="submit">
</form>
<?php 
if (isset($_POST['weight']))
{

   $w=$_POST["weight"]; 
   echo $w; 
}
?>

And it should display your input after the submit button is pressed.

answered Jun 21 '15 at 03:22

Sulthan Allaudeen

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Oh my,,,completely forgot the submit thing...thanks...lol..:) – Ron Manuela Jun 21 '15 at 03:24
1

@arkaem That's ok, Everyone has a learning point :) – Sulthan Allaudeen Jun 21 '15 at 03:25
i assumed that it would work...but still no display...hmm weird – Ron Manuela Jun 21 '15 at 03:35
@arkaem Can't get you.. It is not outputing the input ? – Sulthan Allaudeen Jun 21 '15 at 03:39
oh now it does..my bad...thanks sir!!!... I was dragging my project folder directly to my browser..when I should've run it from Localhost...:D thanks a lot – Ron Manuela Jun 21 '15 at 03:45
ha ha, Yes it should be :) Welcome :) – Sulthan Allaudeen Jun 21 '15 at 03:51

Display input text value that is stored on a variable

1 Answers1