@moostende at gmail dot com
If you want to remove all dashes but one from the string '-aaa----b-c-----d--e---f' resulting in '-aaa-b-c-d-e-f', you CAN use str_replace !
<?php
function foo($str)
{
do {
$str = str_replace("--", "-", $str, $count);
} while ($count > 0);
return $str;
}
echo foo("-aaa----b-c-----d--e---f");
?>
This outputs the following:
-aaa-b-c-d-e-f