CODEWITHSUNDEEP
phphtmlweb
Syarx
Syarx

Reputation: 79

isset is not working on submit

This is a 5-star rating form and I am trying to make it work. 

<div class="stars">
  <form>
    <input class="star star-5" id="star-5" type="radio" name="star" value="5"/>
    <label class="star star-5" for="star-5"></label>
    <input class="star star-4" id="star-4" type="radio" name="star" value="4"/>
    <label class="star star-4" for="star-4"></label>
    <input class="star star-3" id="star-3" type="radio" name="star" value="3"/>
    <label class="star star-3" for="star-3"></label>
    <input class="star star-2" id="star-2" type="radio" name="star" value="2"/>
    <label class="star star-2" for="star-2"></label>
    <input class="star star-1" id="star-1" type="radio" name="star" value="1"/>
    <label class="star star-1" for="star-1"></label>
    <button class="button" type="submit" name="submit" value="submit">Submit</button>

  </form>
</div>

When I press the submit button nothing happens. The code does not move into the if statement, though it should since submit is not longer null.

<?php
if(isset($_POST['submit'])){
    $rating = $_POST['star'];
    echo "hello";
    echo $rating;
}
?>

Upvotes: 1

Views: 476

Answers (5)

Purvik Dhorajiya
Purvik Dhorajiya

Reputation: 4870

isset() checks if a variable has a value including ( False , 0 , or empty string) , but not NULL. Returns TRUE if variable exists otherwise returns FALSE.

On the other hand the empty() function checks if the variable has an empty value, empty string , 0, NULL ,or False. Returns FALSE if variable has a non-empty and non-zero value.

Example

if(!empty($_POST['star'])){
     ....
}

Upvotes: 0

Bibhudatta Sahoo
Bibhudatta Sahoo

Reputation: 4894

You just missed to put form method and action in form.
Use this

<form method="post" action="" >

and on php code use 

if(isset($_POST['star']))

it will work

Upvotes: 1

S3FaQ El
S3FaQ El

Reputation: 3

You have to set method and action attributes in the form tag.

 <form method='post' action='page.php'>

Upvotes: -1

Gyan
Gyan

Reputation: 508

To use super global variable $_POST, u need to specify method attribute to the form tag with submit button. Change your form tag and your submit button tag to :

<div class="stars">
<form method="POST" name="starRatingForm" action="<?php echo $_SERVER['PHP_SELF'];?>">
<input class="star star-5" id="star-5" type="radio" name="star" value="5"/>
<label class="star star-5" for="star-5"></label>
<input class="star star-4" id="star-4" type="radio" name="star" value="4"/>
<label class="star star-4" for="star-4"></label>
<input class="star star-3" id="star-3" type="radio" name="star" value="3"/>
<label class="star star-3" for="star-3"></label>
<input class="star star-2" id="star-2" type="radio" name="star" value="2"/>
<label class="star star-2" for="star-2"></label>
<input class="star star-1" id="star-1" type="radio" name="star" value="1"/>
<label class="star star-1" for="star-1"></label>
<input type="submit" name="submit" value="submit"/>
</form>
</div>

Upvotes: 0

Bhargav Chudasama
Bhargav Chudasama

Reputation: 7161

set form method=post
if html and php code in same page use
set form action="" otherwise use
set form action=".php file"

for ex:<form method="post" action=" or .php file">

Upvotes: 2

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