Question

I want if value field txtname was empty echo It is ok but it don’t work in my code(if field was empty and click on button you see output with print_r(...)), Please see my demo and my code. what do I do?

Demo: http://codepad.viper-7.com/FNWcIs

<form method="post">
    <input name="txtname[]">
    <button>Click Me</button>
</form>
<?php
    if ($_POST) {
        $txtname = $_POST['txtname'];
        if (!empty($txtname)) {
            echo '<pre>';
            print_r($txtname); // Output this is: Array ( [0] => )
        } else {
            echo 'it is ok';
        }
    } 
?>

Answer 1

You can try it this way it works if you are not intending to pass one value to the variable $txtname

`

    $txtname       = $_POST['txtname'];
    if($txtname[0]){
        echo '<pre>';
                print_r($txtname); // Output this is: Array ( [0] => )
            }else{
                echo 'it is ok';
            }
}

?>`