[SOLVED] Filtering User Input and EXPLODEing

[kingnutter]

Hi everyone,

 

A user input page on the site I am creating has a field in which to enter comma separated tags.

 

For searchabilty I intend to EXPLODE them into a separate table.

 

I have been advised to check for empty elements which seems straightforward, but also check for multiple commas.

 

Could somebody let me know the correct PHP code with which to do this? Maybe I should strip it of characters along with any other potential rogue characters?

 

Also, should I do this BEFORE exploding the tag list into an array, or for each array element after exploding.

 

Many thanks,

Gary

[papaface]

<?php
$string = "a,,b,c,,,d,e,f,g,h";
$explode = array_filter(explode(",",$string));

print_r($explode);
?>

Is that what you want?

[kingnutter]

Yes. That definitely does something. Not completely sure what or how yet though, but I'll have a play.

 

Cheers.