實(shí)例

從數(shù)組的第三個(gè)元素開(kāi)始取出，并返回?cái)?shù)組中的其余元素：

<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,2));
?>

運(yùn)行實(shí)例

定義和用法

array_slice() 函數(shù)在數(shù)組中根據(jù)條件取出一段值，并返回。

注釋?zhuān)?/span>如果數(shù)組有字符串鍵，所返回的數(shù)組將保留鍵名。（參見(jiàn)例子 4）

語(yǔ)法

array_slice(array,start,length,preserve)

技術(shù)細(xì)節(jié)

更多實(shí)例

例子 1

從數(shù)組的第二個(gè)元素開(kāi)始取出，并僅返回兩個(gè)元素：

<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2));
?>

運(yùn)行實(shí)例

例子 2

使用負(fù)的 start 參數(shù)：

<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,-2,1));
?>

運(yùn)行實(shí)例

例子 3

把 preserve 參數(shù)設(shè)置為 true：

<?php
$a=array("red","green","blue","yellow","brown");
print_r(array_slice($a,1,2,true));
?>

運(yùn)行實(shí)例

例子 4

處理字符串鍵名和整數(shù)鍵名：

<?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));
?>

運(yùn)行實(shí)例