ensuring all text feilds contain date

[burge124]

hi,

 

what method should i use to ensure when a user is registering to a system that all of the feilds contain some information, otherwise the page simply reloads or shows up an error message?

 

 

[The Little Guy]

first, use the isset() function on the submit button to check if the submit was submitted (returns TRUE/FALSE).

next use the empty() function to check if a filed was left empty (returns TRUE/FALSE).

if any thing was empty display the page again. otherwise save the info, and use a header to go to the next page.

[fnairb]

You can never trust the user so testing in your script is the right thing to do.  However, if the option is available, do your users a favor and include that check on the client side as well before the GET/POST is submitted. 

 

 

[The Little Guy]

if you decide to use the empty function, you may want to replace all the spaces to check and make sure the user didn't just enter in a lot of spaces.

 

<?php 
$testString = str_replace(" ",""$string); // don't save this just use it to check stuff.