1--TEST-- 2Testing isset accessing undefined array items and properties 3--FILE-- 4<?php 5 6$a = 'foo'; 7$b =& $a; 8 9var_dump(isset($b)); 10 11var_dump(isset($a[0], $b[1])); 12 13var_dump(isset($a[0]->a)); 14 15var_dump(isset($c[0][1][2]->a->b->c->d)); 16 17var_dump(isset(${$a}->{$b->{$c[$d]}})); 18 19var_dump(isset($GLOBALS)); 20 21var_dump(isset($GLOBALS[1])); 22 23var_dump(isset($GLOBALS[1]->$GLOBALS)); 24 25?> 26--EXPECTF-- 27bool(true) 28bool(true) 29bool(false) 30bool(false) 31 32Warning: Undefined variable $c in %s on line %d 33 34Warning: Undefined variable $d in %s on line %d 35 36Warning: Trying to access array offset on value of type null in %s on line %d 37 38Warning: Attempt to read property "" on string in %s on line %d 39bool(false) 40bool(true) 41bool(false) 42bool(false) 43
