Question

I have a comma separated list, and would like to remove the first occurrence of 1 from the list, but also removing any extra commas that were separating that value. How would this be done?

This is the string:

 $str = '1,1,2,3,4,5,6,7,8,9,10';

I need to replace the first 1 so it looks like this:

$str = '1,2,3,4,5,6,7,8,9,10';

I need to remove the extra commas, because the numbers are linked to the items that display on the page in MySQL DB.

Answer 1

$search = 1;
$items = explode(',', $csvString);
if (($index = array_search($search, $items)) !== false)
  unset($items[$index]);
$csvString = implode(',', $items);