How to insert a couple of words into a sentence, knowing which word to insert after?

Question

PHP

It is common for each of us to love someone, you need to add words not after 3 words, that is, us after 4 words (typically), a simple check if word == will not do us, there can be any sentence, you need to write after a certain word number

Answer 1

The main thing here is to understand the logic of how to break up what a "word" is. The easiest way to split by spaces and paste where necessary ... More or less universal option:

<?php
function func ($text, $num, $addText) {

    $explode = explode(' ', $text, $num + 1);

    $last = array_pop($explode);

    array_push($explode, $addText, $last);

    return implode(' ', $explode);
}

$result = func('Каждому из нас свойственно любить кого-нибудь', 4, 'Привет!');
?>

Answer 2

The question is a stream of consciousness. But splitting the string by spaces and then gluing the resulting pieces together is probably quite a working option.