- array_splice: documentation ( source)
- implode: documentation ( source)
- explode: documentation ( source)
<?php
function AddInTheMiddle($start, $where, $what){
$arr = explode("/", $what);
$str = implode("/", array_splice($arr,$start,$where)) . '/xxx/' . implode("/", $arr);;
return $str;
}
$str = 'solutions-en/rail-technologies/track-components/name-of-product';
$str = AddInTheMiddle(1, 2, $str);
echo $str;