array_shiftarray_slice
(PHP 4, PHP 5)
array_slice — Extract a slice of the array
Descrierea
$array
, int $offset
[, int $length = NULL
[, bool $preserve_keys = false
]] )
array_slice() returns the sequence of elements
from the array array as specified by the
offset and length
parameters.
Parametri
-
array -
The input array.
-
offset -
If
offsetis non-negative, the sequence will start at that offset in thearray. Ifoffsetis negative, the sequence will start that far from the end of thearray. -
length -
If
lengthis given and is positive, then the sequence will have up to that many elements in it. If the array is shorter than thelength, then only the available array elements will be present. Iflengthis given and is negative then the sequence will stop that many elements from the end of the array. If it is omitted, then the sequence will have everything fromoffsetup until the end of thearray. -
preserve_keys -
Note that array_slice() will reorder and reset the numeric array indices by default. You can change this behaviour by setting
preserve_keystoTRUE.
Valorile întoarse
Returns the slice.
Istoria schimbărilor
| Versiunea | Descriere |
|---|---|
| 5.0.2 |
The optional preserve_keys parameter was added.
|
Exemple
Example #1 array_slice() examples
<?php
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 2); // returns "c", "d", and "e"
$output = array_slice($input, -2, 1); // returns "d"
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
// note the differences in the array keys
print_r(array_slice($input, 2, -1));
print_r(array_slice($input, 2, -1, true));
?>
Exemplul de mai sus va afișa:
Array
(
[0] => c
[1] => d
)
Array
(
[2] => c
[3] => d
)
Vedeți de asemenea
- array_splice() - Remove a portion of the array and replace it with something else
- unset() - Elimină o variabilă dată
- array_chunk() - Desparte un tablou în porțiuni
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User Contributed Notes
array_slice - [48 notes]