<?php
const GIRL = 'mary';
$hello = "hello";
$world = "world";
$id = [ 'hipster' ];
$names['hans'] = 'hans';
$names[$id[0]] = 'hipster';
$names[GIRL] = 'mary';
$hipster = "I said '{$hello}' before the {$world} thought it was cool";
echo "{{$hipster}} said the {$names['hans']} the hipster to {$names[GIRL]} the {$names[$id[0]]}.";