ListDeleteAt

The ListDeleteAt function is a neat little coldfusion function and works just as well in PHP. This function is good for removing counted values from lists. I use it a lot in conjunction with other list functions.

The Function:

<php function ListDeleteAt($list,$position,$delimiter) { $delimiter = substr($delimiter, 1); $a = explode($delimiter,$list); for($i=0;$i<count($a);$i++) { if($i != $position) { if(! isset($return)) { $return = $a[$i]; } else { $return .= $delimiter . $a[$i]; } } } return $return; } ?>

Usage:

To use the ListDeleteAt function with the default delimiter ',': <php $list = "a,b,c,d,e,f,g"; $position = 3; echo ListDeleteAt($list,$position); ?>

The Result: a,b,d,e,f,g. The 'c' which was in the third position has noe been removed!

To use the ListDeleteAt function with a custom delimiter: <php $list = "12345"; $position = 2; echo ListDeleteAt($list,$position); ?>

The Result: '1345'. The '2' which was in the second position has noe been removed!