How to determine the presence of a word in and display a specific text?

Question

PHP

Hello, help to determine the presence of the word "Word1" in the line And if there is such a word in the line, then display the text . If there is no word, then do not display anything.
<p>Слово1</p>
Текст который нужно вывести

Answer 1

$str = '<p>Слово1</p>';

if (mb_stripos($str, 'слово1') !== false) {
    echo 'Текст который нужно вывести';
}