In
this episode, I am trying to show how we can validate html form using PHP
script. Form validation is very much important for web developed because
without validation, an empty cell will be added to database and it is waste of memory
in database. For this reason we construct validation to prevent add empty
content to our database. Many times we need to create a login or registration page
for the user and we need to all value of the form. In case users forgets or not
fill up the field then there is a mistake of data which is needed. So we need
to prevent that. Let do that,
At
first we need a form like that,
<form method=”post”>
<input type=”text’ value=”” name = “first
name” />
<input type=”text’ value=”” name = “last name” />
<input type=”submit’ value=”Ok” name = “Ok” />
</form>
Now
create an php script for validation,
<?php
if($_POST[‘Ok’])
{
if(empty($_POST[‘first name’]))
{
$msg = “Insert First Name !”;
}
if(empty($_POST[‘last name’]))
{
$msg2 = “Insert Last Name !”;
}
Else
{
Connect
your database
And Store the value of field in database using Insert
query.
}
}
?>
Here
use a function empty ( ) which is building function of PHP for check
that the field is empty or not. You can also use Javascript or Jquery for
validation. Enjoy it.
Written
by “Shojib”
