Online PHP editor | refs for HJL6s

<?php function parseDbString(string $value = 'Looking for a good {{ $pippo }}'){ global $pippo; $pippo = 'Pizza'; return preg_replace_callback('/{{ \$(.*?) }}/', function($m) use ($pippo) { echo "Global: " , $GLOBALS['pippo']; echo "\n{$m[1]}\n"; return $GLOBALS[$m[1]] ?? $m[0]; // null coalescing operator provides fallback },$value); } echo parseDbString();