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--TEST-- Test str_pad() function : usage variations - unexpected inputs for '$pad_type' argument --FILE-- <?php /* Prototype : string str_pad ( string $input , int $pad_length [, string $pad_string [, int $pad_type ]] ) * Description: Pad a string to a certain length with another string * Source code: ext/standard/string.c */ /* Test str_pad() function: with unexpected inputs for '$pad_type' * and expected type for '$input', '$pad_length' and '$pad_string' */ echo "*** Testing str_pad() function: with unexpected inputs for 'pad_type' argument ***\n"; //get an unset variable $unset_var = 'string_val'; unset($unset_var); //defining a class class sample { public function __toString() { return "sample object"; } } // array with different values for $input $pad_types = array ( // integer values /*1*/ 0, // == STR_PAD_LEFT 1, // == STR_PAD_RIGHT 2, // == STR_PAD_BOTH -2, 2147483647, -2147483648, // float values /*7*/ 10.5, -20.5, 10.1234567e10, // string data /*10*/ "abc", "STR_PAD_LEFT", "2", "0x2", "02", // array values /*15*/ array(), array(0), array(1, 2), // boolean values /*18*/ true, false, TRUE, FALSE, // null vlaues /*22*/ NULL, null, // objects /*24*/ new sample(), // undefined variable /*25*/ @$undefined_var, // unset variable /*26*/ @$unset_var ); //defining '$input' argument $input = "Test string"; $pad_length = 20; $pad_string = "*"; // loop through with each element of the $pad_types array to test str_pad() function $count = 1; foreach($pad_types as $pad_type) { echo "-- Iteration $count --\n"; var_dump( str_pad($input, $pad_length, $pad_string, $pad_type) ); $count ++; } ?> ===DONE=== --EXPECTF-- *** Testing str_pad() function: with unexpected inputs for 'pad_type' argument *** -- Iteration 1 -- string(20) "*********Test string" -- Iteration 2 -- string(20) "Test string*********" -- Iteration 3 -- string(20) "****Test string*****" -- Iteration 4 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 5 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 6 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 7 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 8 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 9 -- Warning: str_pad(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s on line %d NULL -- Iteration 10 -- Warning: str_pad() expects parameter 4 to be long, string given in %s on line %d NULL -- Iteration 11 -- Warning: str_pad() expects parameter 4 to be long, string given in %s on line %d NULL -- Iteration 12 -- string(20) "****Test string*****" -- Iteration 13 -- string(20) "****Test string*****" -- Iteration 14 -- string(20) "****Test string*****" -- Iteration 15 -- Warning: str_pad() expects parameter 4 to be long, array given in %s on line %d NULL -- Iteration 16 -- Warning: str_pad() expects parameter 4 to be long, array given in %s on line %d NULL -- Iteration 17 -- Warning: str_pad() expects parameter 4 to be long, array given in %s on line %d NULL -- Iteration 18 -- string(20) "Test string*********" -- Iteration 19 -- string(20) "*********Test string" -- Iteration 20 -- string(20) "Test string*********" -- Iteration 21 -- string(20) "*********Test string" -- Iteration 22 -- string(20) "*********Test string" -- Iteration 23 -- string(20) "*********Test string" -- Iteration 24 -- Warning: str_pad() expects parameter 4 to be long, object given in %s on line %d NULL -- Iteration 25 -- string(20) "*********Test string" -- Iteration 26 -- string(20) "*********Test string" ===DONE===