--TEST--
Test array_shift() function
--FILE--
<?php
/* Prototype: mixed array_shift( array &array );
* Description: Shifts the first value of the array off and returns it.
*/
array_shift($GLOBALS);
$empty_array = array();
$number = 5;
$str = "abc";
/* Various combinations of arrays to be used for the test */
$mixed_array = array(
array(),
array( 1,2,3,4,5,6,7,8,9 ),
array( "One", "_Two", "Three", "Four", "Five" ),
array( 6, "six", 7, "seven", 8, "eight", 9, "nine" ),
array( "a" => "aaa", "A" => "AAA", "c" => "ccc", "d" => "ddd", "e" => "eee" ),
array( "1" => "one", "2" => "two", "3" => "three", "4" => "four", "5" => "five" ),
array( 1 => "one", 2 => "two", 3 => 7, 4 => "four", 5 => "five" ),
array( "f" => "fff", "1" => "one", 4 => 6, "" => "blank", 2.4 => "float", "F" => "FFF",
"blank" => "", 3.7 => 3.7, 5.4 => 7, 6 => 8.6, '5' => "Five", "4name" => "jonny", "a" => NULL, NULL => 3 ),
array( 12, "name", 'age', '45' ),
array( array("oNe", "tWo", 4), array(10, 20, 30, 40, 50), array() ),
array( "one" => 1, "one" => 2, "three" => 3, 3, 4, 3 => 33, 4 => 44, 5, 6,
5.4 => 54, 5.7 => 57, "5.4" => 554, "5.7" => 557 )
);
/* Testing Error Conditions */
echo "\n*** Testing Error Conditions ***\n";
/* Zero argument */
var_dump( array_shift() );
/* Scalar argument */
var_dump( array_shift($number) );
/* String argument */
var_dump( array_shift($str) );
/* Invalid Number of arguments */
var_dump( array_shift($mixed_array[1],$mixed_array[2]) );
/* Empty Array as argument */
var_dump( array_shift($empty_array) );
/* Loop to test normal functionality with different arrays inputs */
echo "\n*** Testing with various array inputs ***\n";
$counter = 1;
foreach( $mixed_array as $sub_array ) {
echo "\n-- Input Array for Iteration $counter is -- \n";
print_r( $sub_array );
echo "\nOutput after shift is :\n";
var_dump( array_shift($sub_array) );
$counter++;
}
/*Checking for internal array pointer beint reset when shift is called */
echo"\n*** Checking for internal array pointer being reset when shift is called ***\n";
echo "\nCurrent Element is : ";
var_dump( current($mixed_array[1]) );
echo "\nNext Element is : ";
var_dump( next($mixed_array[1]) );
echo "\nNext Element is : ";
var_dump( next($mixed_array[1]) );
echo "\nshifted Element is : ";
var_dump( array_shift($mixed_array[1]) );
echo "\nCurrent Element after shift operation is: ";
var_dump( current($mixed_array[1]) );
echo"Done";
?>
--EXPECTF--
*** Testing Error Conditions ***
Warning: Wrong parameter count for array_shift() in %s line %d
NULL
Warning: array_shift(): The argument should be an array in %s on line %d
NULL
Warning: array_shift(): The argument should be an array in %s on line %d
NULL
Warning: Wrong parameter count for array_shift() in %s on line %d
NULL
NULL
*** Testing with various array inputs ***
-- Input Array for Iteration 1 is --
Array
(
)
Output after shift is :
NULL
-- Input Array for Iteration 2 is --
Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
[6] => 7
[7] => 8
[8] => 9
)
Output after shift is :
int(1)
-- Input Array for Iteration 3 is --
Array
(
[0] => One
[1] => _Two
[2] => Three
[3] => Four
[4] => Five
)
Output after shift is :
string(3) "One"
-- Input Array for Iteration 4 is --
Array
(
[0] => 6
[1] => six
[2] => 7
[3] => seven
[4] => 8
[5] => eight
[6] => 9
[7] => nine
)
Output after shift is :
int(6)
-- Input Array for Iteration 5 is --
Array
(
[a] => aaa
[A] => AAA
[c] => ccc
[d] => ddd
[e] => eee
)
Output after shift is :
string(3) "aaa"
-- Input Array for Iteration 6 is --
Array
(
[1] => one
[2] => two
[3] => three
[4] => four
[5] => five
)
Output after shift is :
string(3) "one"
-- Input Array for Iteration 7 is --
Array
(
[1] => one
[2] => two
[3] => 7
[4] => four
[5] => five
)
Output after shift is :
string(3) "one"
-- Input Array for Iteration 8 is --
Array
(
[f] => fff
[1] => one
[4] => 6
[] => 3
[2] => float
[F] => FFF
[blank] =>
[3] => 3.7
[5] => Five
[6] => 8.6
[4name] => jonny
[a] =>
)
Output after shift is :
string(3) "fff"
-- Input Array for Iteration 9 is --
Array
(
[0] => 12
[1] => name
[2] => age
[3] => 45
)
Output after shift is :
int(12)
-- Input Array for Iteration 10 is --
Array
(
[0] => Array
(
[0] => oNe
[1] => tWo
[2] => 4
)
[1] => Array
(
[0] => 10
[1] => 20
[2] => 30
[3] => 40
[4] => 50
)
[2] => Array
(
)
)
Output after shift is :
array(3) {
[0]=>
string(3) "oNe"
[1]=>
string(3) "tWo"
[2]=>
int(4)
}
-- Input Array for Iteration 11 is --
Array
(
[one] => 2
[three] => 3
[0] => 3
[1] => 4
[3] => 33
[4] => 44
[5] => 57
[6] => 6
[5.4] => 554
[5.7] => 557
)
Output after shift is :
int(2)
*** Checking for internal array pointer being reset when shift is called ***
Current Element is : int(1)
Next Element is : int(2)
Next Element is : int(3)
shifted Element is : int(1)
Current Element after shift operation is: int(2)
Done