1--TEST-- 2Bug #44899 (__isset usage changes behavior of empty()) 3--FILE-- 4<?php 5 6class myclass 7{ 8 private $_data = array(); 9 10 function __construct($data) 11 { 12 $this->_data = $data; 13 } 14 15 function __isset($field_name) 16 { 17 return isset($this->_data[$field_name]); 18 } 19} 20 21$arr = array('foo' => ''); 22 23$myclass = new myclass($arr) ; 24 25echo (isset($myclass->foo)) ? 'isset' : 'not isset'; 26echo "\n"; 27echo (empty($myclass->foo)) ? 'empty' : 'not empty'; 28echo "\n"; 29echo ($myclass->foo) ? 'not empty' : 'empty'; 30echo "\n"; 31 32?> 33--EXPECTF-- 34isset 35empty 36 37Warning: Undefined property: myclass::$foo in %s on line %d 38empty 39
