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));
?...Array ( [0] => Horse [1] => Cow )
)
3.array_filter(array,function);函数用回调函数过滤数组中的元素,如果自定义过滤函数返回 true,则被操作的数组的当前值就会被包含在返回的结果数组中...php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
print_r(array_rand($a,2));
?...php
$a=array_fill(2,3,"Dog");
print_r($a);
?