1--TEST-- 2Test sizeof() function : object functionality - object with Countable interface 3--FILE-- 4<?php 5/* Prototype : int sizeof($mixed var[, int $mode]) 6 * Description: Counts an elements in an array. If Standard PHP library is installed, 7 * it will return the properties of an object. 8 * Source code: ext/standard/basic_functions.c 9 * Alias to functions: count() 10 */ 11 12echo "*** Testing sizeof() : object functionality ***\n"; 13 14echo "-- Testing sizeof() with an object which implements Countable interface --\n"; 15class sizeof_class implements Countable 16{ 17 public $member1; 18 private $member2; 19 protected $member3; 20 21 public function count() 22 { 23 return 3; // return the count of member variables in the object 24 } 25} 26 27$obj = new sizeof_class(); 28 29echo "-- Testing sizeof() in default mode --\n"; 30var_dump( sizeof($obj) ); 31echo "-- Testing sizeof() in COUNT_NORMAL mode --\n"; 32var_dump( sizeof($obj, COUNT_NORMAL) ); 33echo "-- Testing sizeof() in COUNT_RECURSIVE mode --\n"; 34var_dump( sizeof($obj, COUNT_RECURSIVE) ); 35 36echo "Done"; 37?> 38--EXPECT-- 39*** Testing sizeof() : object functionality *** 40-- Testing sizeof() with an object which implements Countable interface -- 41-- Testing sizeof() in default mode -- 42int(3) 43-- Testing sizeof() in COUNT_NORMAL mode -- 44int(3) 45-- Testing sizeof() in COUNT_RECURSIVE mode -- 46int(3) 47Done 48
