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715 lines
14 KiB
Plaintext
715 lines
14 KiB
Plaintext
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--TEST--
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Test key(), current(), next() & reset() functions
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--FILE--
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<?php
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/* Prototype & Usage:
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mixed key ( array &$array ) -> returns the index element of the current array position
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mixed current ( array &$array ) -> returns the current element in the array
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mixed next ( array &$array ) -> similar to current() but advances the internal pointer to next element
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mixed reset ( array &$array ) -> Reset the internal pointer to first element
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*/
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$basic_arrays = array (
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array(0), // array with element as 0
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array(1), // array with single element
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array(1,2, 3, -1, -2, -3), // array of integers
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array(1.1, 2.2, 3.3, -1.1, -2.2, -3.3), // array of floats
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array('a', 'b', 'c', "ab", "ac", "ad"), // string array
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array("a" => "apple", "b" => "book", "c" => "cook"), // associative array
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array('d' => 'drink', 'p' => 'port', 's' => 'set'), // another associative array
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array(1 => 'One', 2 => 'two', 3 => "three") // associative array with key as integers
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);
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$varient_arrays = array (
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array(), // empty array
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array(""), // array with null string
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array(NULL),// array with NULL
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array(null),// array with null
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array(NULL, true, null, "", 1), // mixed array
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array(-1.5 => "test", -2 => "rest", 2.5 => "two",
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"" => "string", 0 => "zero", "" => "" ) // mixed array
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);
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echo "*** Testing basic operations ***\n";
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$loop_count = 1;
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foreach ($basic_arrays as $sub_array ) {
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echo "-- Iteration $loop_count --\n";
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$loop_count++;
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$c = count ($sub_array);
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$c++; // increment by one to create the situation of accessing beyond array size
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while ( $c ) {
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var_dump( current($sub_array)); // current element
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var_dump( key($sub_array) ); // key of the current element
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var_dump( next($sub_array) ); // move to next element
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$c --;
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}
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var_dump( reset($sub_array) ); // reset the internal pointer to first element
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var_dump( key($sub_array) ); // access the array after reset
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var_dump( $sub_array ); // dump the array to see that its intact
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echo "\n";
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}
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echo "\n*** Testing possible variations ***\n";
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$loop_count = 1;
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foreach ($varient_arrays as $sub_array ) {
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echo "-- Iteration $loop_count --\n";
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$loop_count++;
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$c = count ($sub_array);
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$c++; // increment by one to create the situation of accessing beyond array size
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while ( $c ) {
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var_dump( current($sub_array)); // current element
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var_dump( key($sub_array) ); // key of the current element
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var_dump( next($sub_array) ); // move to next element
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$c --;
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}
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var_dump( reset($sub_array) ); // reset the internal pointer to first element
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var_dump( key($sub_array) ); // access the array after reset
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var_dump( $sub_array ); // dump the array to see that its intact
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echo "\n";
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}
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/*test these functions on array which is already unset */
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echo "\n-- Testing variation: when array is unset --\n";
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$unset_array = array (1);
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unset($unset_array);
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var_dump( current($unset_array) );
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var_dump( key($unset_array) );
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var_dump( next($unset_array) );
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var_dump( reset($unset_array) );
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echo "\n*** Testing error conditions ***\n";
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//Zero argument, expected 1 argument
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var_dump( key() );
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var_dump( current() );
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var_dump( reset() );
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var_dump( next() );
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// args more than expected, expected 1 argument
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$temp_array = array(1);
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var_dump( key($temp_array, $temp_array) );
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var_dump( current($temp_array, $temp_array) );
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var_dump( reset($temp_array, $temp_array) );
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var_dump( next($temp_array, $temp_array) );
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// invalid args type, valid arguement: array
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$int_var = 1;
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$float_var = 1.5;
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$string = "string";
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var_dump( key($int_var) );
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var_dump( key($float_var) );
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var_dump( key($string) );
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var_dump( current($int_var) );
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var_dump( current($float_var) );
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var_dump( current($string) );
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var_dump( next($int_var) );
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var_dump( next($float_var) );
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var_dump( next($string) );
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var_dump( reset($int_var) );
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var_dump( reset($float_var) );
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var_dump( reset($string) );
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echo "\n*** Testing operation on Objects ***\n";
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// class having members of different scope
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class test_class
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{
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private $private_var = "private_var";
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public $public_var = "public_var";
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protected $protected_var = "protected_var";
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private $var1 = 10;
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public $var2 = 30;
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protected $var3 = 40;
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var $integer = 3092;
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private function private_fun() {
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echo "private_fun() called\n";
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}
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protected function protected_fun() {
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echo "protected_fun() called\n";
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}
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public function public_fun() {
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echo "public_fun() called\n";
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}
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}
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// class with no member variables
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class zero_member_var_class
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{
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public function fun() {
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echo "fun() called\n";
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}
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}
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// class with no members
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class zero_member_class
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{
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// no members
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}
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//create object of all classes defined above
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$test_class_obj = new test_class();
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$zero_member_var_class_obj = new zero_member_var_class();
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$zero_member_class_obj = new zero_member_class();
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$object_array = array (
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$test_class_obj,
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$zero_member_var_class_obj,
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$zero_member_class_obj
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);
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/* loop to use function key(), current(), next() and reset()
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on different class objects */
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$loop_count = 1;
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foreach( $object_array as $object ) {
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echo "--- Outerloop Iteration $loop_count ---\n";
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/* dump the object before performing operation on it */
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echo "Object before performing operations ...\n";
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var_dump($object) ;
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/* loop to feach all the key/value pair from the object*/
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$inner_loop_count = 1;
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do {
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echo "-- Innerloop iteration $inner_loop_count of Outerloop Iteration $loop_count --\n";
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$inner_loop_count ++;
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// print the key/value pair of the current value
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echo "current => "; var_dump( current($object) ); // key & value pair
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echo "key => "; var_dump( key($object) ); // key
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$next_pair = next($object);
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echo "next => "; var_dump($next_pair);
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} while( FALSE != $next_pair );
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$loop_count++;
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/* reset the object */
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echo "reset => "; var_dump( reset($object) );
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echo "current => "; var_dump( current($object) ); // first variable in object
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echo "\nObject after performing operations ...\n";
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var_dump($object) ; // no change expected
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}
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echo "Done\n";
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?>
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--EXPECTF--
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*** Testing basic operations ***
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-- Iteration 1 --
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int(0)
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int(0)
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bool(false)
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bool(false)
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NULL
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bool(false)
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int(0)
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int(0)
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array(1) {
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[0]=>
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int(0)
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}
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-- Iteration 2 --
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int(1)
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int(0)
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bool(false)
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bool(false)
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NULL
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bool(false)
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int(1)
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int(0)
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array(1) {
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[0]=>
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int(1)
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}
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-- Iteration 3 --
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int(1)
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int(0)
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int(2)
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int(2)
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int(1)
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int(3)
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int(3)
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int(2)
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int(-1)
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int(-1)
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int(3)
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int(-2)
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int(-2)
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int(4)
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int(-3)
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int(-3)
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int(5)
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bool(false)
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bool(false)
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NULL
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bool(false)
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int(1)
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int(0)
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array(6) {
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[0]=>
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int(1)
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[1]=>
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int(2)
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[2]=>
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int(3)
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[3]=>
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int(-1)
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[4]=>
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int(-2)
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[5]=>
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int(-3)
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}
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-- Iteration 4 --
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float(1.1)
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int(0)
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float(2.2)
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float(2.2)
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int(1)
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float(3.3)
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float(3.3)
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int(2)
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float(-1.1)
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float(-1.1)
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int(3)
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float(-2.2)
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float(-2.2)
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int(4)
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float(-3.3)
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float(-3.3)
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int(5)
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bool(false)
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bool(false)
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NULL
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bool(false)
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float(1.1)
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int(0)
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array(6) {
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[0]=>
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float(1.1)
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[1]=>
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float(2.2)
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[2]=>
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float(3.3)
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[3]=>
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float(-1.1)
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[4]=>
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float(-2.2)
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[5]=>
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float(-3.3)
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}
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-- Iteration 5 --
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string(1) "a"
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int(0)
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string(1) "b"
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string(1) "b"
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int(1)
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string(1) "c"
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string(1) "c"
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int(2)
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string(2) "ab"
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string(2) "ab"
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int(3)
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string(2) "ac"
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string(2) "ac"
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int(4)
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string(2) "ad"
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string(2) "ad"
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int(5)
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bool(false)
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bool(false)
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NULL
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bool(false)
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string(1) "a"
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int(0)
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array(6) {
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[0]=>
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string(1) "a"
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[1]=>
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string(1) "b"
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[2]=>
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string(1) "c"
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[3]=>
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string(2) "ab"
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[4]=>
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string(2) "ac"
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[5]=>
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string(2) "ad"
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}
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-- Iteration 6 --
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string(5) "apple"
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string(1) "a"
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string(4) "book"
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string(4) "book"
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string(1) "b"
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string(4) "cook"
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string(4) "cook"
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string(1) "c"
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bool(false)
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bool(false)
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NULL
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bool(false)
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string(5) "apple"
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string(1) "a"
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array(3) {
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["a"]=>
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string(5) "apple"
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["b"]=>
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string(4) "book"
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["c"]=>
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string(4) "cook"
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}
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-- Iteration 7 --
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string(5) "drink"
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string(1) "d"
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string(4) "port"
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string(4) "port"
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string(1) "p"
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string(3) "set"
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|
string(3) "set"
|
|||
|
|
string(1) "s"
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
string(5) "drink"
|
|||
|
|
string(1) "d"
|
|||
|
|
array(3) {
|
|||
|
|
["d"]=>
|
|||
|
|
string(5) "drink"
|
|||
|
|
["p"]=>
|
|||
|
|
string(4) "port"
|
|||
|
|
["s"]=>
|
|||
|
|
string(3) "set"
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 8 --
|
|||
|
|
string(3) "One"
|
|||
|
|
int(1)
|
|||
|
|
string(3) "two"
|
|||
|
|
string(3) "two"
|
|||
|
|
int(2)
|
|||
|
|
string(5) "three"
|
|||
|
|
string(5) "three"
|
|||
|
|
int(3)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
string(3) "One"
|
|||
|
|
int(1)
|
|||
|
|
array(3) {
|
|||
|
|
[1]=>
|
|||
|
|
string(3) "One"
|
|||
|
|
[2]=>
|
|||
|
|
string(3) "two"
|
|||
|
|
[3]=>
|
|||
|
|
string(5) "three"
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
*** Testing possible variations ***
|
|||
|
|
-- Iteration 1 --
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
array(0) {
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 2 --
|
|||
|
|
string(0) ""
|
|||
|
|
int(0)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
string(0) ""
|
|||
|
|
int(0)
|
|||
|
|
array(1) {
|
|||
|
|
[0]=>
|
|||
|
|
string(0) ""
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 3 --
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
array(1) {
|
|||
|
|
[0]=>
|
|||
|
|
NULL
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 4 --
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
array(1) {
|
|||
|
|
[0]=>
|
|||
|
|
NULL
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 5 --
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
bool(true)
|
|||
|
|
bool(true)
|
|||
|
|
int(1)
|
|||
|
|
NULL
|
|||
|
|
NULL
|
|||
|
|
int(2)
|
|||
|
|
string(0) ""
|
|||
|
|
string(0) ""
|
|||
|
|
int(3)
|
|||
|
|
int(1)
|
|||
|
|
int(1)
|
|||
|
|
int(4)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
int(0)
|
|||
|
|
array(5) {
|
|||
|
|
[0]=>
|
|||
|
|
NULL
|
|||
|
|
[1]=>
|
|||
|
|
bool(true)
|
|||
|
|
[2]=>
|
|||
|
|
NULL
|
|||
|
|
[3]=>
|
|||
|
|
string(0) ""
|
|||
|
|
[4]=>
|
|||
|
|
int(1)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
-- Iteration 6 --
|
|||
|
|
string(4) "test"
|
|||
|
|
int(-1)
|
|||
|
|
string(4) "rest"
|
|||
|
|
string(4) "rest"
|
|||
|
|
int(-2)
|
|||
|
|
string(3) "two"
|
|||
|
|
string(3) "two"
|
|||
|
|
int(2)
|
|||
|
|
string(0) ""
|
|||
|
|
string(0) ""
|
|||
|
|
string(0) ""
|
|||
|
|
string(4) "zero"
|
|||
|
|
string(4) "zero"
|
|||
|
|
int(0)
|
|||
|
|
bool(false)
|
|||
|
|
bool(false)
|
|||
|
|
NULL
|
|||
|
|
bool(false)
|
|||
|
|
string(4) "test"
|
|||
|
|
int(-1)
|
|||
|
|
array(5) {
|
|||
|
|
[-1]=>
|
|||
|
|
string(4) "test"
|
|||
|
|
[-2]=>
|
|||
|
|
string(4) "rest"
|
|||
|
|
[2]=>
|
|||
|
|
string(3) "two"
|
|||
|
|
[""]=>
|
|||
|
|
string(0) ""
|
|||
|
|
[0]=>
|
|||
|
|
string(4) "zero"
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
-- Testing variation: when array is unset --
|
|||
|
|
|
|||
|
|
Warning: current(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: key(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: next(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: reset(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
*** Testing error conditions ***
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for key() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for current() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for reset() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for next() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for key() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for current() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for reset() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: Wrong parameter count for next() in %s on line %d
|
|||
|
|
NULL
|
|||
|
|
|
|||
|
|
Warning: key(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: key(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: key(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: current(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: current(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: current(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: next(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: next(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: next(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: reset(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: reset(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
Warning: reset(): Passed variable is not an array or object in %s on line %d
|
|||
|
|
bool(false)
|
|||
|
|
|
|||
|
|
*** Testing operation on Objects ***
|
|||
|
|
--- Outerloop Iteration 1 ---
|
|||
|
|
Object before performing operations ...
|
|||
|
|
object(test_class)#1 (7) {
|
|||
|
|
["private_var:private"]=>
|
|||
|
|
string(11) "private_var"
|
|||
|
|
["public_var"]=>
|
|||
|
|
string(10) "public_var"
|
|||
|
|
["protected_var:protected"]=>
|
|||
|
|
string(13) "protected_var"
|
|||
|
|
["var1:private"]=>
|
|||
|
|
int(10)
|
|||
|
|
["var2"]=>
|
|||
|
|
int(30)
|
|||
|
|
["var3:protected"]=>
|
|||
|
|
int(40)
|
|||
|
|
["integer"]=>
|
|||
|
|
int(3092)
|
|||
|
|
}
|
|||
|
|
-- Innerloop iteration 1 of Outerloop Iteration 1 --
|
|||
|
|
current => string(11) "private_var"
|
|||
|
|
key => string(23) " test_class private_var"
|
|||
|
|
next => string(10) "public_var"
|
|||
|
|
-- Innerloop iteration 2 of Outerloop Iteration 1 --
|
|||
|
|
current => string(10) "public_var"
|
|||
|
|
key => string(10) "public_var"
|
|||
|
|
next => string(13) "protected_var"
|
|||
|
|
-- Innerloop iteration 3 of Outerloop Iteration 1 --
|
|||
|
|
current => string(13) "protected_var"
|
|||
|
|
key => string(16) " * protected_var"
|
|||
|
|
next => int(10)
|
|||
|
|
-- Innerloop iteration 4 of Outerloop Iteration 1 --
|
|||
|
|
current => int(10)
|
|||
|
|
key => string(16) " test_class var1"
|
|||
|
|
next => int(30)
|
|||
|
|
-- Innerloop iteration 5 of Outerloop Iteration 1 --
|
|||
|
|
current => int(30)
|
|||
|
|
key => string(4) "var2"
|
|||
|
|
next => int(40)
|
|||
|
|
-- Innerloop iteration 6 of Outerloop Iteration 1 --
|
|||
|
|
current => int(40)
|
|||
|
|
key => string(7) " * var3"
|
|||
|
|
next => int(3092)
|
|||
|
|
-- Innerloop iteration 7 of Outerloop Iteration 1 --
|
|||
|
|
current => int(3092)
|
|||
|
|
key => string(7) "integer"
|
|||
|
|
next => bool(false)
|
|||
|
|
reset => string(11) "private_var"
|
|||
|
|
current => string(11) "private_var"
|
|||
|
|
|
|||
|
|
Object after performing operations ...
|
|||
|
|
object(test_class)#1 (7) {
|
|||
|
|
["private_var:private"]=>
|
|||
|
|
string(11) "private_var"
|
|||
|
|
["public_var"]=>
|
|||
|
|
string(10) "public_var"
|
|||
|
|
["protected_var:protected"]=>
|
|||
|
|
string(13) "protected_var"
|
|||
|
|
["var1:private"]=>
|
|||
|
|
int(10)
|
|||
|
|
["var2"]=>
|
|||
|
|
int(30)
|
|||
|
|
["var3:protected"]=>
|
|||
|
|
int(40)
|
|||
|
|
["integer"]=>
|
|||
|
|
int(3092)
|
|||
|
|
}
|
|||
|
|
--- Outerloop Iteration 2 ---
|
|||
|
|
Object before performing operations ...
|
|||
|
|
object(zero_member_var_class)#2 (0) {
|
|||
|
|
}
|
|||
|
|
-- Innerloop iteration 1 of Outerloop Iteration 2 --
|
|||
|
|
current => bool(false)
|
|||
|
|
key => NULL
|
|||
|
|
next => bool(false)
|
|||
|
|
reset => bool(false)
|
|||
|
|
current => bool(false)
|
|||
|
|
|
|||
|
|
Object after performing operations ...
|
|||
|
|
object(zero_member_var_class)#2 (0) {
|
|||
|
|
}
|
|||
|
|
--- Outerloop Iteration 3 ---
|
|||
|
|
Object before performing operations ...
|
|||
|
|
object(zero_member_class)#3 (0) {
|
|||
|
|
}
|
|||
|
|
-- Innerloop iteration 1 of Outerloop Iteration 3 --
|
|||
|
|
current => bool(false)
|
|||
|
|
key => NULL
|
|||
|
|
next => bool(false)
|
|||
|
|
reset => bool(false)
|
|||
|
|
current => bool(false)
|
|||
|
|
|
|||
|
|
Object after performing operations ...
|
|||
|
|
object(zero_member_class)#3 (0) {
|
|||
|
|
}
|
|||
|
|
Done
|