Default value to an input in HTML

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2

I have a form that will register your name, surnames, etc. and I have a field that asks for a number, I already register well, now I would like it if the number field is empty that I insert something by default, example: 0.

In the form I get the value of the input like this: 

<div class="form-group">
    <label for="name">Número</label>
    <input type="number"  name="no"  class="form-control" placeholder="23" value="<?php if(isset($_POST['no'])) echo $_POST['no'];  else echo "0" ?>" />
</div>

PHP: 

require_once("dbcontroller.php");
    $db_handle = new DBController();




if(!empty($_POST['no'])){
     $username = $_POST['no'];
}

if(empty($_POST['userName'])){
     $username = '8787';
}

$query = "INSERT INTO tabla (.....,no_interior,...) VALUES
    (...,'" . $username . "',,...)";

But I do not register anything in the bd.

Thank you.

    
asked by x4mp73r 11.04.2016 в 18:44
source

3 answers

1

The simplest solution: 

if (isset($_POST['no'])) {
    $username = $_POST['no'];
}
else {
    $username = 0;
}
    
answered by 13.04.2016 в 11:59
1

I suggest you check the variable, it may not be empty.

Test with IS_NULL or with "" in your if to first identify what you are getting when the field goes "empty"

    
answered by 14.04.2016 в 20:26
0

If you use Mysql you can configure the table so that it inserts default values if no value is assigned to it with the Query.

    
answered by 15.04.2016 в 09:26
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