Member Avatar for davidjennings

Hi I seem to be lost with this form validation

When submited empty the error should display next the input field in red.

Thanks in advance
D

<?php  
if (array_key_exists('submit',$_POST)){  
        //Form has been submitted 
            // Fields that are on form  
            $expected = array('name', 'email', 'comments');  
            // Set required fields  
            $required = array('name', 'comments');  
            // Initialize array for errors  
            $errors = array(); 

                foreach ($_POST as $field => $value){  
            // Make sure field was done correctly otherwise add error.  
        }  

        // Assign to $temp and trim spaces if not array  
        $temp = is_array($value) ? $value : trim($value);  

        // If field is empty and required, tag onto $errors array  
        if (empty($temp) && in_array($field, $required)) {  
              array_push($errors, $field);  

        } 

        if (empty($errors)){  
                //The form is completed properly to do with as you please  
                unset($errors);  
        }

}
?> 

<html>  
    <head>  
        <title>Form</title>  
        <link rel="stylesheet" type="text/css" href="assets/css/default.css">  
    </head>  
    <body>  
        <div id="content">  

                <form id="commentform" method="post" action="index.php">  
                    <p>  
                    <label for="name">Name:</label>  <?php if (isset($errors) && in_array('name', $errors)){?> <div class="red">Please enter name</div>  <?php } ?>  
                    <br/>  
                   <input name="name" id="name" type="text"  <?php if (isset($errors)) { echo 'value="'.htmlentities($_POST['name']).'"'; } ?>  />

                    </p>  
                    <p>  
                    <label for="email">Email:</label> <br/>  
                    <input name="email" id="email" type="text"/>  
                    </p>  
                    <p>  
                    <label for="comments">Comment:</label>  
                    <br/>  
                    <textarea name="comments" id="comments" rows="4"><?php if (isset($errors)) { echo htmlentities($_POST['comments']); }  ?>
  • 5 Contributors
  • 6 Replies
  • 413 Views
  • 1 Day Discussion Span
  • Latest Post Latest Post by Webville312
Member Avatar for Szabi Zsoldos

The easiest way is by jQuery.

Member Avatar for colbypsalazar

When the type is released, the following details will be saved in the $_POST comprehensive variety (or $_GET comprehensive variety based on the form’s technique attribute). The in the left-hand comprehensive variety are taken from the control’s name operate.

Member Avatar for Webville312

In your php script, you can use the code;

<?php
$fname = $_POST['firstname'];
$lname = $_POST['lastname'];

if (empty($fname)) { 
     $errorfname= '<div class="isa_error">Frist name is required</div>'; 
} 
if (empty($lname)) { 
     $errorlname = '<div class="isa_error">Last name is required</div>'; 
} 
?>

And in your form, you can write the code;

<html>
<body>
<form action="" method="post">
<input type="text" name="firstname">
<?php if(isset($errorfname)) { echo $errorfname; } ?> // fname error message
<input type="text" name="lastname">
 <?php if(isset($errorlname)) { echo $errorlname; } ?> //lname error message
<input type="submit" name="submit" value="Submit">
</form>

That should work

Member Avatar for davidjennings

Thanks very much for your help Webville312 i did come up with a solution.

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = trim($_POST["name"]);
    $email = trim($_POST["email"]);
    $message = trim($_POST["message"]);


    if ($name == "" OR $email == "" OR $message == "") {
        $error_message = "You must specify a value for name, email address, and message.";
       }

    foreach( $_POST as $value ){
        if( stripos($value,'Content-Type:') !== FALSE ){
            $error_message = "There was a problem with the information you entered.";    

        }
    }

    if ($_POST["address"] != "") {
        $error_message = "Your form submission has an error.";

    }

    require_once("inc/phpmailer/class.phpmailer.php");
    $mail = new PHPMailer();

    if (!$mail->ValidateAddress($email)){
        $error_message = "You must specify a valid email address.";

    }

Thanks
D

Member Avatar for minitauros

Just a usability note: "Your form submission has an error." is kind of an unclear error message. Do you really want the user to read such a thing? He might get confused ;).

Member Avatar for Webville312

Yo most welcome. Could you please mark this thread as solved?

Edited by Webville312 because: had to make some corrections
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