CODEWITHSUNDEEP
phphtmlvariablestextarea
Daria
Daria

Reputation: 861

Can't pass textarea value to php variable

I need to assign text of textarea tag to php variable. I try do it like this:

<form method="GET">
        <textarea rows="4" cols="50" name="query">some string</textarea>
</form>

<?php
    $query = $_REQUEST['query'];
    echo $query; 
?>

But I'm getting 

Notice: Undefined index: query in index.php on line _

What do I do wrong? Thanks.

Upvotes: 1

Views: 9542

Answers (4)

Funk Forty Niner
Funk Forty Niner

Reputation: 74217

Since you're using the entire code inside the same page, it's normal for it to throw you that warning on page load.

Use empty() with a conditional statement for that form element.

if(!empty($_REQUEST['query'])){
$query = $_REQUEST['query'];
}

Plus, in conjunction with empty(), use isset() with a named submit button, as I've outlined below.

if(isset($_REQUEST['submit']) && !empty($_REQUEST['query']) ){

Plus, you will need to add some type of button to submit the data.

Either a <button type="submit" name="submit">Submit</button>

or an input type <input type="submit" value="Submit" name="submit">

  • Forms default to "self" if an action to a file isn't present.

Such as your <form method="GET">

Otherwise, split your form and PHP apart, and use <form method="GET" action="handler.php">

having the HTML form as one file, and the PHP in the other.

It would still be best to use empty() and isset() for either case.

Upvotes: 4

Riad
Riad

Reputation: 3850

You need to use this:

// add a submit button first...
 <input type="submit" name="submit">

 <?php
   if(isset($_GET['submit'])){
     // means submit clicked!

     $query = $_GET['query'];
     echo $query;

     print_r($_GET) // check the values of $_GET array..
   }
 ?>

Upvotes: 1

Rakesh Sharma
Rakesh Sharma

Reputation: 13728

try to add a submit button to form and default form method will be get so no need to add method get

<form>
   <textarea rows="4" cols="50" name="query">some string</textarea>
   <input type="submit" name="submit">
</form>

and for check

<?php
if(isset($_GET['query'])) {
    $query = $_GET['query'];
    echo $query; 
}?>

Upvotes: 1

Pupil
Pupil

Reputation: 23958

You need to post the form.

You are not posting it. This is the reason.

Add a new element submit

<input type="submit" name="submit" value="Submit"/>

Upvotes: 1

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