1--TEST-- 2Converting undefined index/offset notice to exception 3--FILE-- 4<?php 5 6set_error_handler(function($_, $msg) { 7 throw new Exception($msg); 8}); 9 10$test = []; 11try { 12 $test[0] .= "xyz"; 13} catch (Exception $e) { 14 echo $e->getMessage(), "\n"; 15} 16var_dump($test); 17 18try { 19 $test["key"] .= "xyz"; 20} catch (Exception $e) { 21 echo $e->getMessage(), "\n"; 22} 23var_dump($test); 24 25unset($test); 26try { 27 $GLOBALS["test"] .= "xyz"; 28} catch (Exception $e) { 29 echo $e->getMessage(), "\n"; 30} 31try { 32 var_dump($test); 33} catch (Exception $e) { 34 echo $e->getMessage(), "\n"; 35} 36 37?> 38--EXPECT-- 39Undefined offset: 0 40array(0) { 41} 42Undefined index: key 43array(0) { 44} 45Undefined index: test 46Undefined variable: test 47