//Javascript

let text = "Hi! This is a text";

let searchedValue = "text";

console.log(text.includes(searchedValue)); //returns True

​

//Php

$text = "Hi! This is a text";

$searchedValue = "text";

echo(str_contains($text, $searchedValue)); //returns 1

​

//Python

text = "Hi! This is a text"

searchedValue = "text"

print(searchedValue in text) # returns True