array_unshift_variation2.phpt [plain text]
--TEST--
Test array_unshift() function : usage variations - all possible values for 'var' argument
--FILE--
<?php
/* Prototype : int array_unshift(array $array, mixed $var [, mixed ...])
* Description: Pushes elements onto the beginning of the array
* Source code: ext/standard/array.c
*/
/*
* Testing array_unshift() by giving all the possible values for $var argument
*/
echo "*** Testing array_unshift() : all possible values for \$var argument ***\n";
// array to be passed to $array argument
$array = array('f' => "first", "s" => 'second', 1, 2.222);
// get a class
class classA
{
public function __toString() {
return "Class A object";
}
}
// get a resource variable
$fp = fopen(__FILE__, "r");
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// get an unset variable
$unset_var = 10;
unset ($unset_var);
// different types of values to be passed to $var argument
$vars = 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',
$heredoc,
// object data
/*26*/ new classA(),
// undefined data
@$undefined_var,
// unset data
@$unset_var,
// resource variable
/*29*/ $fp
);
// loop through each element of $vars to check the functionality of array_unshift()
$iterator = 1;
foreach($vars as $var) {
echo "-- Iteration $iterator --\n";
$temp_array = $array;
/* with default argument */
// returns element count in the resulting array after arguments are pushed to
// beginning of the given array
var_dump( array_unshift($temp_array, $var) );
// dump the resulting array
var_dump($temp_array);
/* with optional arguments */
// returns element count in the resulting array after arguments are pushed to
// beginning of the given array
$temp_array = $array;
var_dump( array_unshift($temp_array, $var, "hello", 'world') );
// dump the resulting array
var_dump($temp_array);
$iterator++;
}
// close the file resource used
fclose($fp);
echo "Done";
?>
--EXPECTF--
*** Testing array_unshift() : all possible values for $var argument ***
-- Iteration 1 --
int(5)
array(5) {
[0]=>
int(0)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
int(0)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 2 --
int(5)
array(5) {
[0]=>
int(1)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
int(1)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 3 --
int(5)
array(5) {
[0]=>
int(12345)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
int(12345)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 4 --
int(5)
array(5) {
[0]=>
int(-2345)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
int(-2345)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 5 --
int(5)
array(5) {
[0]=>
float(10.5)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
float(10.5)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 6 --
int(5)
array(5) {
[0]=>
float(-10.5)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
float(-10.5)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 7 --
int(5)
array(5) {
[0]=>
float(123456789000)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
float(123456789000)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 8 --
int(5)
array(5) {
[0]=>
float(1.23456789E-9)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
float(1.23456789E-9)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 9 --
int(5)
array(5) {
[0]=>
float(0.5)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
float(0.5)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 10 --
int(5)
array(5) {
[0]=>
array(0) {
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
array(0) {
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 11 --
int(5)
array(5) {
[0]=>
array(1) {
[0]=>
int(0)
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
array(1) {
[0]=>
int(0)
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 12 --
int(5)
array(5) {
[0]=>
array(1) {
[0]=>
int(1)
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
array(1) {
[0]=>
int(1)
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 13 --
int(5)
array(5) {
[0]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 14 --
int(5)
array(5) {
[0]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
array(2) {
["color"]=>
string(3) "red"
["item"]=>
string(3) "pen"
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 15 --
int(5)
array(5) {
[0]=>
NULL
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
NULL
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 16 --
int(5)
array(5) {
[0]=>
NULL
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
NULL
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 17 --
int(5)
array(5) {
[0]=>
bool(true)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
bool(true)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 18 --
int(5)
array(5) {
[0]=>
bool(false)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
bool(false)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 19 --
int(5)
array(5) {
[0]=>
bool(true)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
bool(true)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 20 --
int(5)
array(5) {
[0]=>
bool(false)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
bool(false)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 21 --
int(5)
array(5) {
[0]=>
string(0) ""
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
string(0) ""
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 22 --
int(5)
array(5) {
[0]=>
string(0) ""
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
string(0) ""
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 23 --
int(5)
array(5) {
[0]=>
string(6) "string"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
string(6) "string"
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 24 --
int(5)
array(5) {
[0]=>
string(6) "string"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
string(6) "string"
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 25 --
int(5)
array(5) {
[0]=>
string(11) "hello world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
string(11) "hello world"
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 26 --
int(5)
array(5) {
[0]=>
object(classA)#%d (0) {
}
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
object(classA)#%d (0) {
}
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 27 --
int(5)
array(5) {
[0]=>
NULL
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
NULL
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 28 --
int(5)
array(5) {
[0]=>
NULL
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
NULL
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
-- Iteration 29 --
int(5)
array(5) {
[0]=>
resource(%d) of type (stream)
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[1]=>
int(1)
[2]=>
float(2.222)
}
int(7)
array(7) {
[0]=>
resource(%d) of type (stream)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f"]=>
string(5) "first"
["s"]=>
string(6) "second"
[3]=>
int(1)
[4]=>
float(2.222)
}
Done