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--TEST-- Test array_unshift() function : passing object for 'var' argument --FILE-- <?php /* Prototype : int array_unshift(array $array, mixed $var [, mixed ...]) * Description: Pushes elements onto the beginning of the array * Source code: ext/standard/array.c */ /* * Testing the functionality of array_unshift() by passing * an object to the $var argument */ echo "*** Testing array_unshift() : Passing object to \$var argument ***\n"; // simple class with a variable and method class SimpleClass { public $var1 = 1; public function fun1() { return $var1; } } // class without members class EmptyClass { } // abstract class abstract class AbstractClass { protected $var2 = 5; abstract function emptyFunction(); } // class deriving the above abstract class class ChildClass extends AbstractClass { private $var3; public function emptyFunction() { echo "defined in child"; } } // class with final method class FinalClass { private $var4; final function finalMethod() { echo "This function can't be overloaded"; } } // class with static members class StaticClass { static $var5 = 2; public static function staticMethod() { echo "This is a static method"; } } // array to be passed to $array argument $array = array('f' => "first", "s" => 'second', 1, 2.222); // array containing different types of objects as elements $vars = array( new SimpleClass(), new EmptyClass(), new ChildClass(), new FinalClass(), new StaticClass() ); // loop through the various elements of $arrays to check the functionality of array_unshift $iterator = 1; foreach($vars as $var) { echo "-- Iteration $iterator --\n"; /* with default argument */ // returns element count in the resulting array after arguments are pushed to // beginning of the given array $temp_array = $array; var_dump( array_unshift($temp_array, $var) ); // dump the resulting array var_dump($temp_array); /* with optional arguments */ // returns element count in the resulting array after arguments are pushed to // beginning of the given array $temp_array = $array; var_dump( array_unshift($temp_array, $var, "hello", 'world') ); // dump the resulting array var_dump($temp_array); $iterator++; } echo "Done"; ?> --EXPECTF-- *** Testing array_unshift() : Passing object to $var argument *** -- Iteration 1 -- int(5) array(5) { [0]=> object(SimpleClass)#%d (1) { ["var1"]=> int(1) } ["f"]=> string(5) "first" ["s"]=> string(6) "second" [1]=> int(1) [2]=> float(2.222) } int(7) array(7) { [0]=> object(SimpleClass)#%d (1) { ["var1"]=> int(1) } [1]=> string(5) "hello" [2]=> string(5) "world" ["f"]=> string(5) "first" ["s"]=> string(6) "second" [3]=> int(1) [4]=> float(2.222) } -- Iteration 2 -- int(5) array(5) { [0]=> object(EmptyClass)#%d (0) { } ["f"]=> string(5) "first" ["s"]=> string(6) "second" [1]=> int(1) [2]=> float(2.222) } int(7) array(7) { [0]=> object(EmptyClass)#%d (0) { } [1]=> string(5) "hello" [2]=> string(5) "world" ["f"]=> string(5) "first" ["s"]=> string(6) "second" [3]=> int(1) [4]=> float(2.222) } -- Iteration 3 -- int(5) array(5) { [0]=> object(ChildClass)#%d (2) { ["var3":"ChildClass":private]=> NULL ["var2":protected]=> int(5) } ["f"]=> string(5) "first" ["s"]=> string(6) "second" [1]=> int(1) [2]=> float(2.222) } int(7) array(7) { [0]=> object(ChildClass)#%d (2) { ["var3":"ChildClass":private]=> NULL ["var2":protected]=> int(5) } [1]=> string(5) "hello" [2]=> string(5) "world" ["f"]=> string(5) "first" ["s"]=> string(6) "second" [3]=> int(1) [4]=> float(2.222) } -- Iteration 4 -- int(5) array(5) { [0]=> object(FinalClass)#%d (1) { ["var4":"FinalClass":private]=> NULL } ["f"]=> string(5) "first" ["s"]=> string(6) "second" [1]=> int(1) [2]=> float(2.222) } int(7) array(7) { [0]=> object(FinalClass)#%d (1) { ["var4":"FinalClass":private]=> NULL } [1]=> string(5) "hello" [2]=> string(5) "world" ["f"]=> string(5) "first" ["s"]=> string(6) "second" [3]=> int(1) [4]=> float(2.222) } -- Iteration 5 -- int(5) array(5) { [0]=> object(StaticClass)#%d (0) { } ["f"]=> string(5) "first" ["s"]=> string(6) "second" [1]=> int(1) [2]=> float(2.222) } int(7) array(7) { [0]=> object(StaticClass)#%d (0) { } [1]=> string(5) "hello" [2]=> string(5) "world" ["f"]=> string(5) "first" ["s"]=> string(6) "second" [3]=> int(1) [4]=> float(2.222) } Done