(PHP 4, PHP 5, PHP 7)
array_slice — 锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷一锟斤拷
$array
, int $offset
[, int $length = NULL
[, bool $preserve_keys = false
]] ) : array
array_slice() 锟斤拷锟截革拷锟斤拷 offset 锟斤拷
length 锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷 array
锟斤拷锟斤拷锟叫碉拷一锟斤拷锟斤拷锟叫★拷
array锟斤拷锟斤拷锟斤拷锟斤拷椤�
offset
锟斤拷锟� offset 锟角革拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟斤拷 array
锟叫的达拷偏锟斤拷锟斤拷锟斤拷始锟斤拷锟斤拷锟� offset 为锟斤拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟斤拷
array 锟叫撅拷锟斤拷末锟斤拷锟斤拷么远锟侥地凤拷锟斤拷始锟斤拷
length
锟斤拷锟斤拷锟斤拷锟斤拷锟� length 锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟斤拷锟斤拷锟斤拷么锟斤拷牡锟皆拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
length 锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟叫斤拷锟斤拷止锟节撅拷锟斤拷锟斤拷锟斤拷末锟斤拷锟斤拷么远锟侥地凤拷锟斤拷锟斤拷锟绞★拷裕锟斤拷锟斤拷锟斤拷薪锟斤拷锟�
offset 锟斤拷始一直锟斤拷 array 锟斤拷末锟剿★拷
preserve_keys
注锟斤拷 array_slice() 默锟较伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷锟斤拷
preserve_keys 锟斤拷为 TRUE 锟斤拷锟侥憋拷锟斤拷锟轿拷锟�
锟斤拷锟斤拷锟斤拷锟斤拷一锟轿★拷 锟斤拷锟� offset 锟斤拷锟斤拷锟斤拷锟斤拷 array 锟竭寸，锟酵会返锟截空碉拷 array锟斤拷
| 锟芥本 | 说锟斤拷 |
|---|---|
| 5.2.4 |
length 锟斤拷锟斤拷默锟斤拷值锟侥筹拷 NULL锟斤拷
锟斤拷锟斤拷 length 为 NULL 时锟斤拷锟斤拷思锟斤拷说使锟斤拷 array 锟侥筹拷锟饺★拷
之前锟侥版本锟斤， NULL 锟斤拷 length
锟斤拷锟斤拷思锟角筹拷锟斤拷为锟姐（啥也锟斤拷锟斤拷锟截ｏ拷锟斤拷
|
| 5.0.2 |
锟斤拷锟斤拷锟剿匡拷选锟斤拷锟斤拷 preserve_keys 锟斤拷
|
Example #1 array_slice() 锟斤拷锟斤拷
<?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));
?>
锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�
Array
(
[0] => c
[1] => d
)
Array
(
[2] => c
[3] => d
)