PHP函数array_chunk()分割数组

array_chunk() 把一个数组分割成新的数组块

array array_chunk(array $array,int $size[,bool preserve_key])

参数描述:array是分割的数组

size规定每个新数组包含的元素,最后一个数组可能会少几个元素

preserve_key:可选,有两个选项:true,保留原始数组中的键名;false,默认选项,每个结果数组使用从0开始的新数组索引

示例:

$array = array(
    'a'=>'JAVA',
    'b'=>'PHP',
    'c'=>"C++",
    'd'=>'c#',
    'e'=>'perl'
);
print_r(array_chunk($array,2,false));
echo PHP_EOL;
print_r(array_chunk($array,2,true));

运行结果如下:

Array ( [0] => Array ( [0] => JAVA [1] => PHP ) [1] => Array ( [0] => C++ [1] => c# ) [2] => Array ( [0] => perl ) )

Array ( [0] => Array ( [a] => JAVA [b] => PHP ) [1] => Array ( [c] => C++ [d] => c# ) [2] => Array ( [e] => perl ) )
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