<?php

// variable substitution

echo ('Hello {$person->name}! Welcome to $company!');

echo ("Hello {$person->name}! Welcome to $company!");

echo (<<<MSG
    Hello {$person->name}! Welcome to $company!
MSG);

// heredoc syntax

var_dump(<<<SQL
    SELECT *
    FROM table
SQL);

var_dump(<<<SQL
    SELECT *
    FROM table
    SQL);