Symfony - Compare Word with caracters / 3.4

Question

Hey guys my question is simple how can i check if a word contains a series of characters.

Exemple : Check if IAmATest as Test in it ... ?

Test@gmail.com --> gmail.com = true

Test@Yahoo.eu --> gmail.com = false

Answer 1

if (strpos('Test@gmail.com', 'gmail.com') !== false) {
    // word contains characters
} else {
    // word doesn't contains characters
}