1--TEST-- 2subtracting arrays 3--FILE-- 4<?php 5 6$a = array(1,2,3); 7$b = array(1); 8 9try { 10 var_dump($a - $b); 11} catch (Error $e) { 12 echo "\nException: " . $e->getMessage() . "\n"; 13} 14 15$c = $a - $b; 16var_dump($c); 17 18echo "Done\n"; 19?> 20--EXPECTF-- 21Exception: Unsupported operand types: array - array 22 23Fatal error: Uncaught TypeError: Unsupported operand types: array - array in %s:%d 24Stack trace: 25#0 {main} 26 thrown in %s on line %d 27