array_unshift_variation5.phpt [plain text]
--TEST--
Test array_unshift() function : usage variations - assoc. array with diff values for 'array' argument
--INI--
precision=12
--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 the functionality of array_unshift() by passing different
* associative arrays having different possible values to $array argument.
* The $var argument passed is a fixed value
*/
echo "*** Testing array_unshift() : associative array with different values ***\n";
// get an unset variable
$unset_var = 10;
unset ($unset_var);
// get a resource variable
$fp = fopen(__FILE__, "r");
// get a class
class classA
{
public function __toString() {
return "Class A object";
}
}
// get a heredoc string
$heredoc = <<<EOT
Hello world
EOT;
// initializing $var argument
$var = 10;
// different variations of associative arrays to be passed to $array argument
$arrays = array (
// empty array
/*1*/ array(),
// arrays with integer values
array('0' => 0),
array("1" => 1),
array("one" => 1, 'two' => 2, "three" => 3, 4 => 4),
// arrays with float values
/*5*/ array("float" => 2.3333),
array("f1" => 1.2, 'f2' => 3.33, 3 => 4.89999922839999, 'f4' => 33333333.333333),
// arrays with string values
/*7*/ array(111 => "\tHello", "red" => "col\tor", 2 => "\v\fworld", 3.3 => "pen\n"),
array(111 => '\tHello', "red" => 'col\tor', 2 => '\v\fworld', 3.3 => 'pen\n'),
array(1 => "hello", "heredoc" => $heredoc),
// array with object, unset variable and resource variable
array(11 => new classA(), "unset" => @$unset_var, "resource" => $fp),
// array with mixed values
/*11*/ array(1 => 'hello', 2 => new classA(), 222 => "fruit", 'resource' => $fp, "int" => 133, "float" => 444.432, "unset" => @$unset_var, "heredoc" => $heredoc)
);
// loop through the various elements of $arrays to test array_unshift()
$iterator = 1;
foreach($arrays as $array) {
echo "-- Iteration $iterator --\n";
/* with default argument */
// 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, $var) );
// dump the resulting array
var_dump($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++;
}
echo "Done";
?>
--EXPECTF--
*** Testing array_unshift() : associative array with different values ***
-- Iteration 1 --
int(1)
array(1) {
[0]=>
int(10)
}
int(3)
array(3) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
}
-- Iteration 2 --
int(2)
array(2) {
[0]=>
int(10)
[1]=>
int(0)
}
int(4)
array(4) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
int(0)
}
-- Iteration 3 --
int(2)
array(2) {
[0]=>
int(10)
[1]=>
int(1)
}
int(4)
array(4) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
int(1)
}
-- Iteration 4 --
int(5)
array(5) {
[0]=>
int(10)
["one"]=>
int(1)
["two"]=>
int(2)
["three"]=>
int(3)
[1]=>
int(4)
}
int(7)
array(7) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["one"]=>
int(1)
["two"]=>
int(2)
["three"]=>
int(3)
[3]=>
int(4)
}
-- Iteration 5 --
int(2)
array(2) {
[0]=>
int(10)
["float"]=>
float(2.3333)
}
int(4)
array(4) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["float"]=>
float(2.3333)
}
-- Iteration 6 --
int(5)
array(5) {
[0]=>
int(10)
["f1"]=>
float(1.2)
["f2"]=>
float(3.33)
[1]=>
float(4.8999992284)
["f4"]=>
float(33333333.3333)
}
int(7)
array(7) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
["f1"]=>
float(1.2)
["f2"]=>
float(3.33)
[3]=>
float(4.8999992284)
["f4"]=>
float(33333333.3333)
}
-- Iteration 7 --
int(5)
array(5) {
[0]=>
int(10)
[1]=>
string(6) " Hello"
["red"]=>
string(6) "col or"
[2]=>
string(7) " world"
[3]=>
string(4) "pen
"
}
int(7)
array(7) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
string(6) " Hello"
["red"]=>
string(6) "col or"
[4]=>
string(7) " world"
[5]=>
string(4) "pen
"
}
-- Iteration 8 --
int(5)
array(5) {
[0]=>
int(10)
[1]=>
string(7) "\tHello"
["red"]=>
string(7) "col\tor"
[2]=>
string(9) "\v\fworld"
[3]=>
string(5) "pen\n"
}
int(7)
array(7) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
string(7) "\tHello"
["red"]=>
string(7) "col\tor"
[4]=>
string(9) "\v\fworld"
[5]=>
string(5) "pen\n"
}
-- Iteration 9 --
int(3)
array(3) {
[0]=>
int(10)
[1]=>
string(5) "hello"
["heredoc"]=>
string(11) "Hello world"
}
int(5)
array(5) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
string(5) "hello"
["heredoc"]=>
string(11) "Hello world"
}
-- Iteration 10 --
int(4)
array(4) {
[0]=>
int(10)
[1]=>
object(classA)#%d (0) {
}
["unset"]=>
NULL
["resource"]=>
resource(%d) of type (stream)
}
int(6)
array(6) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
object(classA)#%d (0) {
}
["unset"]=>
NULL
["resource"]=>
resource(%d) of type (stream)
}
-- Iteration 11 --
int(9)
array(9) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
object(classA)#%d (0) {
}
[3]=>
string(5) "fruit"
["resource"]=>
resource(%d) of type (stream)
["int"]=>
int(133)
["float"]=>
float(444.432)
["unset"]=>
NULL
["heredoc"]=>
string(11) "Hello world"
}
int(11)
array(11) {
[0]=>
int(10)
[1]=>
string(5) "hello"
[2]=>
string(5) "world"
[3]=>
string(5) "hello"
[4]=>
object(classA)#%d (0) {
}
[5]=>
string(5) "fruit"
["resource"]=>
resource(%d) of type (stream)
["int"]=>
int(133)
["float"]=>
float(444.432)
["unset"]=>
NULL
["heredoc"]=>
string(11) "Hello world"
}
Done