--TEST-- Test array_pad() function : usage variations - different arrays for 'input' argument --FILE-- 22 'single quoted string' "double quoted string" 2222 != 1111.\t 0000 = 0000\n EOT; // different arrays to be passed to $input argument $inputs = array ( /*1*/ array(1, 2), // with default keys and numeric values array(1.1, 2.2), // with default keys & float values array(false,true), // with default keys and boolean values array(), // empty array /*5*/ array(NULL), // with NULL array("a\v\f", "aaaa\r", "b\tbbb", "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"), // with double quoted strings array('a\v\f', 'aaaa\r', 'b\tbbb', '\[\]\!\@\#\$\%\^\&\*\(\)\{\}'), // with single quoted strings array("h1" => $blank_line, "h2" => $multiline_string, "h3" => $diff_whitespaces, $numeric_string), // with heredocs // associative arrays /*9*/ array(1 => "one", 2 => "two", 3 => "three"), // explicit numeric keys, string values array("one" => 1, "two" => 2, "three" => 3 ), // string keys & numeric values array( 1 => 10, 2 => 20, 4 => 40, 3 => 30), // explicit numeric keys and numeric values array( "one" => "ten", "two" => "twenty", "three" => "thirty"), // string key/value array("one" => 1, 2 => "two", 4 => "four"), //mixed // associative array, containing null/empty/boolean values as key/value /*14*/ array(NULL => "NULL", null => "null", "NULL" => NULL, "null" => null), array(true => "true", false => "false", "false" => false, "true" => true), array("" => "emptyd", '' => 'emptys', "emptyd" => "", 'emptys' => ''), array(1 => '', 2 => "", 3 => NULL, 4 => null, 5 => false, 6 => true), array('' => 1, "" => 2, NULL => 3, null => 4, false => 5, true => 6), // array with repetative keys /*19*/ array("One" => 1, "two" => 2, "One" => 10, "two" => 20, "three" => 3) ); // initialize the $pad_size and $pad_value arguments $pad_size = 6; $pad_value = "HELLO"; // loop through each sub-array within $inputs to check the behavior of array_pad() $iterator = 1; foreach($inputs as $input) { echo "-- Iteration $iterator --\n"; var_dump( array_pad($input, $pad_size, $pad_value) ); // positive 'pad_size' var_dump( array_pad($input, -$pad_size, $pad_value) ); // negative 'pad_size' $iterator++; }; echo "Done"; ?> --EXPECTF-- *** Testing array_pad() : Passing different arrays to $input argument *** -- Iteration 1 -- array(6) { [0]=> int(1) [1]=> int(2) [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> int(1) [5]=> int(2) } -- Iteration 2 -- array(6) { [0]=> float(1.1) [1]=> float(2.2) [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> float(1.1) [5]=> float(2.2) } -- Iteration 3 -- array(6) { [0]=> bool(false) [1]=> bool(true) [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> bool(false) [5]=> bool(true) } -- Iteration 4 -- array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } -- Iteration 5 -- array(6) { [0]=> NULL [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> NULL } -- Iteration 6 -- array(6) { [0]=> string(3) "a " [1]=> string(5) "aaaa " [2]=> string(5) "b bbb" [3]=> string(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(3) "a " [3]=> string(5) "aaaa " [4]=> string(5) "b bbb" [5]=> string(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}" } -- Iteration 7 -- array(6) { [0]=> string(5) "a\v\f" [1]=> string(6) "aaaa\r" [2]=> string(6) "b\tbbb" [3]=> string(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "a\v\f" [3]=> string(6) "aaaa\r" [4]=> string(6) "b\tbbb" [5]=> string(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}" } -- Iteration 8 -- array(6) { ["h1"]=> string(1) " " ["h2"]=> string(86) "hello world The big brown fox jumped over; the lazy dog This is a double quoted string" ["h3"]=> string(88) "hello world 1111 != 2222 heredoc double quoted string. with different white spaces" [0]=> string(90) "11 < 12. 123 >22 'single quoted string' "double quoted string" 2222 != 1111. 0000 = 0000 " [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" ["h1"]=> string(1) " " ["h2"]=> string(86) "hello world The big brown fox jumped over; the lazy dog This is a double quoted string" ["h3"]=> string(88) "hello world 1111 != 2222 heredoc double quoted string. with different white spaces" [2]=> string(90) "11 < 12. 123 >22 'single quoted string' "double quoted string" 2222 != 1111. 0000 = 0000 " } -- Iteration 9 -- array(6) { [0]=> string(3) "one" [1]=> string(3) "two" [2]=> string(5) "three" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [3]=> string(3) "one" [4]=> string(3) "two" [5]=> string(5) "three" } -- Iteration 10 -- array(6) { ["one"]=> int(1) ["two"]=> int(2) ["three"]=> int(3) [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" ["one"]=> int(1) ["two"]=> int(2) ["three"]=> int(3) } -- Iteration 11 -- array(6) { [0]=> int(10) [1]=> int(20) [2]=> int(40) [3]=> int(30) [4]=> string(5) "HELLO" [5]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> int(10) [3]=> int(20) [4]=> int(40) [5]=> int(30) } -- Iteration 12 -- array(6) { ["one"]=> string(3) "ten" ["two"]=> string(6) "twenty" ["three"]=> string(6) "thirty" [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" ["one"]=> string(3) "ten" ["two"]=> string(6) "twenty" ["three"]=> string(6) "thirty" } -- Iteration 13 -- array(6) { ["one"]=> int(1) [0]=> string(3) "two" [1]=> string(4) "four" [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" ["one"]=> int(1) [3]=> string(3) "two" [4]=> string(4) "four" } -- Iteration 14 -- array(6) { [""]=> string(4) "null" ["NULL"]=> NULL ["null"]=> NULL [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [""]=> string(4) "null" ["NULL"]=> NULL ["null"]=> NULL } -- Iteration 15 -- array(6) { [0]=> string(4) "true" [1]=> string(5) "false" ["false"]=> bool(false) ["true"]=> bool(true) [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(4) "true" [3]=> string(5) "false" ["false"]=> bool(false) ["true"]=> bool(true) } -- Iteration 16 -- array(6) { [""]=> string(6) "emptys" ["emptyd"]=> string(0) "" ["emptys"]=> string(0) "" [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [""]=> string(6) "emptys" ["emptyd"]=> string(0) "" ["emptys"]=> string(0) "" } -- Iteration 17 -- array(6) { [1]=> string(0) "" [2]=> string(0) "" [3]=> NULL [4]=> NULL [5]=> bool(false) [6]=> bool(true) } array(6) { [1]=> string(0) "" [2]=> string(0) "" [3]=> NULL [4]=> NULL [5]=> bool(false) [6]=> bool(true) } -- Iteration 18 -- array(6) { [""]=> int(4) [0]=> int(5) [1]=> int(6) [2]=> string(5) "HELLO" [3]=> string(5) "HELLO" [4]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" [""]=> int(4) [3]=> int(5) [4]=> int(6) } -- Iteration 19 -- array(6) { ["One"]=> int(10) ["two"]=> int(20) ["three"]=> int(3) [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" } array(6) { [0]=> string(5) "HELLO" [1]=> string(5) "HELLO" [2]=> string(5) "HELLO" ["One"]=> int(10) ["two"]=> int(20) ["three"]=> int(3) } Done