Ok, this is a part of PHP that i’ve nevr done before so can someone explain to me how to do a tag system because im building a simple blog script and right now my code is
<div class="form-group"> <label>Tags (max 15, separate with comma):</label> <input class="form-control" name="tags[features]" value="<?php echo $productDetails['tags'];?>" id="coupon-code" type="text"></div>
The php code is
$tags = $_POST['tags'];
but basically i dont know how to do an array as such and then at the end the final result is something like but right now i don’t know how to do it so pleae can someone point me in the right direction / help me achieve a tags system!
If you are wanting an array from the form result you can do this with explode()
Because the user is not inputting an array, but a CSL which comes as a single value, I’m not sure you need the  in the input name.
I used just a comma for the delimiter, then run trim() on each entry, just because you can’t trust users to always use a space or not with the comma.
Though you may want to create a custom function to sanitise the inputs more (Eg, with a preg_replace() to limit allowed characters). In which case you could use array_walk() instead of the slightly cumbersome foreach and do it all in one hit.
Set and use $limitonly if you want to limit the number of tags, it is optional.
I think you are confusing the HTML form’s post and get methods.
Submitting a post method passes a hidden $_POST array to the HTML form’s action page. Setting the form’s method to get passes the input named settings to the command line which is useful for web page tags.
A useful function for displaying variable, arrays, booleans’ strings, etc I frequently use
function fred( $val ) // easy to type
echo '<pre style="width:88%; margin: 2em auto;">';
print_r( $val );
fred ( $_POST );
fred ( $_GET );