Given a variable $email containing the string [email protected], which of the following statements would extract the string example.com?

• substr($email, strpos($email, “@”));
• strstr($email, “@”);
• strchr($email, “@”);
• substr($email, strpos($email, “@”)+1);
• strrpos($email, “@”);
• I don’t know

Answer:
substr($email, strpos($email, “@”)+1);