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PHP

Adam maitland
PLUS
Adam maitland
Courses Plus Student 211 Points
Posted by Adam maitland
Adam maitland
Courses Plus Student 211 Points

Carrying a php variable into a form when validation detects error ?

I have a form that looks like this

<form method="post" action="index.php">

    <lable id="newName">Choose a user name:</lable>  
    <input type="text" id="newName" name="newName">
    <p class="error"> <?php echo $error = ""; ?> </p>

    <lable id="newPassword">Choose a password:</lable>  
    <input type="text" id="newPassword" name="newPassword">
    <p class="error"> <?php echo $error = ""; ?> </p>

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

</form>

and php that looks like this

<?php 

        if($_SERVER['REQUEST_METHOD'] == "POST") {

        $newName = $_POST['newName'];
        $newPassword = $_POST['newPassword'];


         if(empty($_POST['newName'])) {

          $error = "You must enter a user name!";


        }


        }

        ?>

What should happen is when a user clicks send without entering anything into the form f the variable $error with in the form will be passed a string but this isn't working ?

1 Answer

Matthew Bilz
Matthew Bilz
15,829 Points

Do you have the form HTML set correctly before your submit button/form text to direct itself to your PHP code? i.e., 

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

Then, in your PHP code within the HTML, you'd want to make sure that the error message is set before echoing it out:

 <lable id="newPassword">Choose a password:</lable>  
    <input type="text" id="newPassword" name="newPassword">
    <?php if(isset($error)) { 
         echo "<p class='error'>$error</p>"; 
          } ?>