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--TEST--
Test array_pad() function : usage variations - possible values for 'pad_value' argument
--FILE--
<?php
/* Prototype : array array_pad(array $input, int $pad_size, mixed $pad_value)
* Description: Returns a copy of input array padded with pad_value to size pad_size
* Source code: ext/standard/array.c
*/
/*
* Testing array_pad() function for expected behavior by passing
* different possible values for $pad_value argument.
* $input and $pad_size arguments take fixed value.
*/
echo "*** Testing array_pad() : possible values for \$pad_value argument ***\n";
// Initialise $input and $pad_size argument
$input = array(1, 2);
$pad_size = 4;
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// get a class
class classA
{
public function __toString() {
return "Class A object";
}
}
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// get a resource variable
$fp = fopen(__FILE__, "r");
// get a reference variable
$value = "hello";
$reference = &$value;
// different values to be passed to $pad_value argument
$pad_values = array(
// int data
/*1*/ 0,
1,
12345,
-2345,
// float data
/*5*/ 10.5,
-10.5,
12.3456789000e10,
12.3456789000E-10,
.5,
// array data
/*10*/ array(),
array(0),
array(1),
array(1, 2),
array('color' => 'red', 'item' => 'pen'),
// null data
/*15*/ NULL,
null,
// boolean data
/*17*/ true,
false,
TRUE,
FALSE,
// empty data
/*21*/ "",
'',
// string data
/*23*/ "string",
'string',
$heredoc,
// strings with different white spaces
/*26*/ "\v\fHello\t world!! \rstring\n",
'\v\fHello\t world!! \rstring\n',
// object data
/*28*/ new classA(),
// undefined data
/*29*/ @$undefined_var,
// unset data
/*30*/ @$unset_var,
// resource variable
/*31*/ $fp,
// reference variable
/*32*/ $reference
);
// loop through each element of $pad_values to check the behavior of array_pad()
$iterator = 1;
foreach($pad_values as $pad_value) {
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() : possible values for $pad_value argument ***
-- Iteration 1 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(0)
[3]=>
int(0)
}
array(4) {
[0]=>
int(0)
[1]=>
int(0)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 2 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(1)
[3]=>
int(1)
}
array(4) {
[0]=>
int(1)
[1]=>
int(1)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 3 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(12345)
[3]=>
int(12345)
}
array(4) {
[0]=>
int(12345)
[1]=>
int(12345)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 4 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(-2345)
[3]=>
int(-2345)
}
array(4) {
[0]=>
int(-2345)
[1]=>
int(-2345)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 5 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
float(10.5)
[3]=>
float(10.5)
}
array(4) {
[0]=>
float(10.5)
[1]=>
float(10.5)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 6 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
float(-10.5)
[3]=>
float(-10.5)
}
array(4) {
[0]=>
float(-10.5)
[1]=>
float(-10.5)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 7 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
float(123456789000)
[3]=>
float(123456789000)
}
array(4) {
[0]=>
float(123456789000)
[1]=>
float(123456789000)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 8 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
float(1.23456789E-9)
[3]=>
float(1.23456789E-9)
}
array(4) {
[0]=>
float(1.23456789E-9)
[1]=>
float(1.23456789E-9)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 9 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
float(0.5)
[3]=>
float(0.5)
}
array(4) {
[0]=>
float(0.5)
[1]=>
float(0.5)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 10 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(0) {
}
[3]=>
array(0) {
}
}
array(4) {
[0]=>
array(0) {
}
[1]=>
array(0) {
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 11 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(1) {
[0]=>
int(0)
}
[3]=>
array(1) {
[0]=>
int(0)
}
}
array(4) {
[0]=>
array(1) {
[0]=>
int(0)
}
[1]=>
array(1) {
[0]=>
int(0)
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 12 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(1) {
[0]=>
int(1)
}
[3]=>
array(1) {
[0]=>
int(1)
}
}
array(4) {
[0]=>
array(1) {
[0]=>
int(1)
}
[1]=>
array(1) {
[0]=>
int(1)
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 13 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[3]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
}
array(4) {
[0]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[1]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 14 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
[3]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
}
array(4) {
[0]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
[1]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 15 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
NULL
[3]=>
NULL
}
array(4) {
[0]=>
NULL
[1]=>
NULL
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 16 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
NULL
[3]=>
NULL
}
array(4) {
[0]=>
NULL
[1]=>
NULL
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 17 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
bool(true)
[3]=>
bool(true)
}
array(4) {
[0]=>
bool(true)
[1]=>
bool(true)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 18 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
bool(false)
[3]=>
bool(false)
}
array(4) {
[0]=>
bool(false)
[1]=>
bool(false)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 19 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
bool(true)
[3]=>
bool(true)
}
array(4) {
[0]=>
bool(true)
[1]=>
bool(true)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 20 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
bool(false)
[3]=>
bool(false)
}
array(4) {
[0]=>
bool(false)
[1]=>
bool(false)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 21 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(0) ""
[3]=>
string(0) ""
}
array(4) {
[0]=>
string(0) ""
[1]=>
string(0) ""
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 22 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(0) ""
[3]=>
string(0) ""
}
array(4) {
[0]=>
string(0) ""
[1]=>
string(0) ""
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 23 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(6) "string"
[3]=>
string(6) "string"
}
array(4) {
[0]=>
string(6) "string"
[1]=>
string(6) "string"
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 24 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(6) "string"
[3]=>
string(6) "string"
}
array(4) {
[0]=>
string(6) "string"
[1]=>
string(6) "string"
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 25 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(11) "hello world"
[3]=>
string(11) "hello world"
}
array(4) {
[0]=>
string(11) "hello world"
[1]=>
string(11) "hello world"
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 26 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(25) " Hello world!!
string
"
[3]=>
string(25) " Hello world!!
string
"
}
array(4) {
[0]=>
string(25) " Hello world!!
string
"
[1]=>
string(25) " Hello world!!
string
"
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 27 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(30) "\v\fHello\t world!! \rstring\n"
[3]=>
string(30) "\v\fHello\t world!! \rstring\n"
}
array(4) {
[0]=>
string(30) "\v\fHello\t world!! \rstring\n"
[1]=>
string(30) "\v\fHello\t world!! \rstring\n"
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 28 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
object(classA)#%d (0) {
}
[3]=>
object(classA)#%d (0) {
}
}
array(4) {
[0]=>
object(classA)#%d (0) {
}
[1]=>
object(classA)#%d (0) {
}
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 29 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
NULL
[3]=>
NULL
}
array(4) {
[0]=>
NULL
[1]=>
NULL
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 30 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
NULL
[3]=>
NULL
}
array(4) {
[0]=>
NULL
[1]=>
NULL
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 31 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
resource(%d) of type (stream)
[3]=>
resource(%d) of type (stream)
}
array(4) {
[0]=>
resource(%d) of type (stream)
[1]=>
resource(%d) of type (stream)
[2]=>
int(1)
[3]=>
int(2)
}
-- Iteration 32 --
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
string(5) "hello"
[3]=>
string(5) "hello"
}
array(4) {
[0]=>
string(5) "hello"
[1]=>
string(5) "hello"
[2]=>
int(1)
[3]=>
int(2)
}
Done