Question

I have got a function which is use to take a string and convert it to the desired form i.e. Sentence case.

function sentence_case($string) {
$sentences = preg_split('/([.?!]+)/', $string, -1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE);
$new_string = '';
foreach ($sentences as $key => $sentence) {
    $new_string .= ($key & 1) == 0?
        ucfirst(strtolower(trim($sentence))) :
        $sentence.' ';
}

$new_string = clean_spaces($new_string);
$new_string = m_r_e_s($new_string);
return trim($new_string);
}

Now I want to modify this function for ” i “, as whenever we have I in out sentence than it remain capital how can I add exception to particular words like…” i “, ” i’ ” etc.

Answer 1

preg_replace('/\bi\b/', 'I', $new_string);