Preg_split不显示句子的第一个字符

Question

I have this code:

<?php
header('Content-type: text/html; charset=utf-8');
$re = "/[.\!\?][\s
\t][A-Z]/";
$forbiddenwords=array("on", "ja", "ning", "ega", "ehk", "või", "aga", "kuid", "ent", "vaid", "et", "kui", "kuna", "sest", "kuni", "kuigi", "ehkki", "nagu" );
$text = 'Oma eluajal ja veel 18. sajandi lõpul oli Bach tuntud vaid võrdlemisi kitsas ringkonnas, heliloojana hakati teda laialt tunnustama alles 19. sajandi esimesel poolel. Praegu peetakse teda põhiliseks heliloojaks barokiajastul ja üheks suurimaks terves muusikaajaloos. Tema loomingut on peetud saksa klassikalise muusika kõrgaja alguseks';

function splitintosentences($re, $text){
    $sentences = preg_split($re, $text, -1, PREG_SPLIT_NO_EMPTY);
    print_r ($sentences);
}

splitintosentences($re, $text);

?>

Everything works just fine, but when program prints out sentences, it does not show first letters of sentences. For example, if sentence is "Dog is brown", then it shows "og is brown". How to solve this?

Answer 1

I think you need A-Z to be a lookahead:

 /[.!?]\s(?=[A-Z])/

reads: punctuation and space, if followed by a capital letter.