php
$my_array = array("a" => "Dog", "b" => "Cat", "c" => "Horse");
shuffle($my_array);
print_r($my_array...php
$a=array("a"=>"Cat","b"=>"Dog","c"=>"Horse","d"=>"Cow");
print_r(array_chunk($a,2));
?...php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse","d"=>"Bird");
print_r(array_slice($a,1,2));
?...php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,2));
?...返回的数组使用数字索引,从 start 位置开始并递增。如果 number 为 0 或小于 0,就会出错。
<?php
$a=array_fill(2,3,"Dog");
print_r($a);
?