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|
--TEST--
Test array_slice() function : usage variations - Pass different data types as $length arg
--SKIPIF--
<?php if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only"); ?>
--FILE--
<?php
/* Prototype : array array_slice(array $input, int $offset [, int $length [, bool $preserve_keys]])
* Description: Returns elements specified by offset and length
* Source code: ext/standard/array.c
*/
/*
* Pass different data types as $length argument to array_slice to test behaviour
*/
echo "*** Testing array_slice() : usage variations ***\n";
// Initialise function arguments not being substituted
$input_array = array('one' => 1, 2, 'three' => 3, 4);
$offset = 2;
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// unexpected values to be passed to $length argument
$inputs = array(
// int data
/*1*/ 0,
1,
12345,
-2345,
// float data
/*5*/ 10.5,
-10.5,
12.3456789000e10,
12.3456789000E-10,
.5,
// null data
/*10*/ NULL,
null,
// boolean data
/*12*/ true,
false,
TRUE,
FALSE,
// empty data
/*16*/ "",
'',
array(),
// string data
/*19*/ "string",
'string',
$heredoc,
// undefined data
/*22*/ @$undefined_var,
// unset data
/*23*/ @$unset_var,
);
// loop through each element of $inputs to check the behavior of array_slice
$iterator = 1;
foreach($inputs as $input) {
echo "\n-- Iteration $iterator --\n";
var_dump( array_slice($input_array, $offset, $input) );
$iterator++;
};
echo "Done";
?>
--EXPECTF--
*** Testing array_slice() : usage variations ***
-- Iteration 1 --
array(0) {
}
-- Iteration 2 --
array(1) {
["three"]=>
int(3)
}
-- Iteration 3 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 4 --
array(0) {
}
-- Iteration 5 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 6 --
array(0) {
}
-- Iteration 7 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 8 --
array(0) {
}
-- Iteration 9 --
array(0) {
}
-- Iteration 10 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 11 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 12 --
array(1) {
["three"]=>
int(3)
}
-- Iteration 13 --
array(0) {
}
-- Iteration 14 --
array(1) {
["three"]=>
int(3)
}
-- Iteration 15 --
array(0) {
}
-- Iteration 16 --
array(0) {
}
-- Iteration 17 --
array(0) {
}
-- Iteration 18 --
array(0) {
}
-- Iteration 19 --
array(0) {
}
-- Iteration 20 --
array(0) {
}
-- Iteration 21 --
array(0) {
}
-- Iteration 22 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
-- Iteration 23 --
array(2) {
["three"]=>
int(3)
[0]=>
int(4)
}
Done
|
