显示 php 二维数组 部分数据

Question

<?php
$case=array(
 array("a","b","c"),
 array("a","b","c"),
 array("a","b","c"),  //2
 array("a","b","c"),  //3
 array("a","b","c"),  //4
 array("a","b","c"),
 array("a","b","c"),
 array("a","b","c")
); 
function print_r_2($arr,$num1,$num2){
if (is_array($arr)){
for ($i = $num1;$i<=$num2;$i++){
print_r($arr[$i])."\n";
}
}
}
print_r_2($case,2,4);
?> 
---------- PHP DEBUG ----------
Array
(
    [0] => a
    [1] => b
    [2] => c
)
Array
(
    [0] => a
    [1] => b
    [2] => c
)
Array
(
    [0] => a
    [1] => b
    [2] => c
)
 
Output completed (0 sec consumed) - Normal Termination