PHP array_slice () function
contoh
Lepaskan mulai dari elemen kedua dari array, dan mengembalikan semua elemen sampai akhir array:
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,2));
?>
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,2));
?>
Menjalankan contoh »
Definisi dan Penggunaan
array_slice () mengembalikan fungsi array bagian yang dipilih.
CATATAN: Jika array memiliki string nama kunci, array kembali akan mempertahankan nama kunci (lihat Contoh 4).
tatabahasa
array_slice( array,start,length,preserve )
| 参数 | 描述 |
|---|---|
| array | 必需。规定数组。 |
| start | 必需。数值。规定取出元素的开始位置。
0 = 第一个元素。
如果该值设置为正数，则从前往后开始取。如果该值设置为负数，则从后向前取 start 绝对值。
-2 意味着从数组的倒数第二个元素开始。 |
| length | 可选。数值。规定被返回数组的长度。
如果该值设置为整数，则返回该数量的元素。如果该值设置为负数，则函数将在举例数组末端这么远的地方终止取出。如果该值未设置，则返回从 start 参数设置的位置开始直到数组末端的所有元素。
|
| preserve | 可选。规定函数是保留键名还是重置键名。可能的值：
|
rincian teknis
| Pengembalian: | Mengembalikan array bagian yang dipilih. |
|---|---|
| Versi PHP: | 4+ |
| Update log: | melestarikan parameter ditambahkan dalam PHP 5.0.2 di. |
contoh yang lebih
contoh 1
Mulai menghapus dari elemen pertama dari array, dan mengembalikan dua elemen:
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2));
?>
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2));
?>
Menjalankan contoh »
contoh 2
Menggunakan parameter awal negatif:
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,-2,1));
?>
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,-2,1));
?>
Menjalankan contoh »
contoh 3
Dengan set melestarikan parameter yang benar:
<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2,true));
?>
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2,true));
?>
Menjalankan contoh »
contoh 4
Dengan kunci tali dan integer:
<?php
$a=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow","e"=>"brown");
print_r(array_slice($a,1,2));
$a=array("0"=>"red","1"=>"green","2"=>"blue","3"=>"yellow","4"=>"brown");
print_r(array_slice($a,1,2));
?>
$a=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow","e"=>"brown");
print_r(array_slice($a,1,2));
$a=array("0"=>"red","1"=>"green","2"=>"blue","3"=>"yellow","4"=>"brown");
print_r(array_slice($a,1,2));
?>
Menjalankan contoh »
Lengkap PHP Array Referensi