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--TEST-- Test json_encode() function : basic functionality --SKIPIF-- <?php if (!extension_loaded("json")) print "skip"; ?> --FILE-- <?php echo "*** Testing json_encode() : basic functionality ***\n"; //get an unset variable $unset_var = 10; unset ($unset_var); // get a resource variable $fp = fopen(__FILE__, "r"); // get an object class sample { } $obj = new sample(); $obj->MyInt = 99; $obj->MyFloat = 123.45; $obj->MyBool = true; $obj->MyNull = null; $obj->MyString = "Hello World"; // array with different values for $string $inputs = array ( // integers 0, 123, -123, 2147483647, -2147483648, // floats 123.456, 1.23E3, -1.23E3, // boolean TRUE, true, FALSE, false, // NULL NULL, null, // strings "abc", 'abc', "Hello\t\tWorld\n", // arrays array(), array(1,2,3,4,5), array(1 => "Sun", 2 => "Mon", 3 => "Tue", 4 => "Wed", 5 => "Thur", 6 => "Fri", 7 => "Sat"), array("Jan" => 31, "Feb" => 29, "Mar" => 31, "April" => 30, "May" => 31, "June" => 30), // empty data "", '', // undefined data @$undefined_var, // unset data @$unset_var, // resource variable $fp, // object variable $obj ); // loop through with each element of the $inputs array to test json_encode() function $count = 1; foreach($inputs as $input) { echo "-- Iteration $count --\n"; var_dump(json_encode($input)); $count ++; } ?> ===Done=== --EXPECTF-- *** Testing json_encode() : basic functionality *** -- Iteration 1 -- string(1) "0" -- Iteration 2 -- string(3) "123" -- Iteration 3 -- string(4) "-123" -- Iteration 4 -- string(10) "2147483647" -- Iteration 5 -- string(11) "-2147483648" -- Iteration 6 -- string(7) "123.456" -- Iteration 7 -- string(4) "1230" -- Iteration 8 -- string(5) "-1230" -- Iteration 9 -- string(4) "true" -- Iteration 10 -- string(4) "true" -- Iteration 11 -- string(5) "false" -- Iteration 12 -- string(5) "false" -- Iteration 13 -- string(4) "null" -- Iteration 14 -- string(4) "null" -- Iteration 15 -- string(5) ""abc"" -- Iteration 16 -- string(5) ""abc"" -- Iteration 17 -- string(18) ""Hello\t\tWorld\n"" -- Iteration 18 -- string(2) "[]" -- Iteration 19 -- string(11) "[1,2,3,4,5]" -- Iteration 20 -- string(72) "{"1":"Sun","2":"Mon","3":"Tue","4":"Wed","5":"Thur","6":"Fri","7":"Sat"}" -- Iteration 21 -- string(58) "{"Jan":31,"Feb":29,"Mar":31,"April":30,"May":31,"June":30}" -- Iteration 22 -- string(2) """" -- Iteration 23 -- string(2) """" -- Iteration 24 -- string(4) "null" -- Iteration 25 -- string(4) "null" -- Iteration 26 -- bool(false) -- Iteration 27 -- string(82) "{"MyInt":99,"MyFloat":123.45,"MyBool":true,"MyNull":null,"MyString":"Hello World"}" ===Done===