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PHP Build a Basic PHP Website (2018) Adding a Basic Form Validating Form Data

Posted by Gremyko Coleman
Gremyko Coleman
9,756 Points

"Please fill in the required fields:" error message

For the error message that is displayed in this tutorial, is there anyway to have the error message to echo to the current page with the form, instead of it going to a separate page because of the exit command? Because I don't want to have a user having to press the back button just to go back to the form.

if($name == "" || $email=="" $details == ""){ echo "please fill in the required fields: Name,email,"; exit }

https://teamtreehouse.com/library/validating-form-data

1 Answer

Dennis Amiel Domingo
Dennis Amiel Domingo
17,813 Points

I also had the same question. When I researched the web, I stumbled upon $_SERVER[PHP_SELF]. The code is different from what we did in this video but the end result is the same. There are also some functions there that we haven't learned of yet, but a quick php manual check will fill you in on it.

If you really want to have that set up now then check out this link: https://www.w3schools.com/php/showphp.asp?filename=demo_form_validation_special

The example above came from this topic: https://www.w3schools.com/php/php_form_url_email.asp

If you still want to use Alena's set up, I suggest you just add in an attribute called "required" for each input fields. 

<tr>
    <th><label for="name">Name</label></th>
    <td><input type="text" id="name" name="name" required/></td>
</tr>
Gremyko Coleman
Gremyko Coleman
9,756 Points

Dennis, Thanks, I needed this because, I wanted the validation of PHP to work just incase the user turns off their JavaScript off on their device.