Question

我正在测试一个递归的PHP脚本。但关联数组以＆＃34; items＆＃34;开头。 key正在抛出错误T_DOUBLE_ARROW。我需要在这部分使用括号吗？＆＃34;方法＆＃34; key是＆＃34; items＆＃34;中的一个层。键。有人可以指导我如何解决这个错误吗？调用name，subject和type键时，find_in_arr函数可以正常工作。但当它到达项目时，我得到了错误。

<?php
function find_in_arr($key, $arr) 
{
foreach ($arr as $k => $v) 
{
    if ($k == $key) 
    {
        return $v;
    }       
    if (is_array($v)) 
    {
        foreach ($v as $_k => $_v) 
        {
        if ($_k == $key)
        {
                return $_v;
            }
        }
    }
}
return false;
}

$arr = 
array(
"name" => "Php Master",
"subject" => "Php",
"type" => "Articles",
"items" => ("one" => "Iteration","two" => "Recursion",
"methods" => ("factorial" => "Recursion","fibonacci" => "Recursion"),)
"parent"? => "Larry Ullman",
 );

var_dump
(
find_in_arr('two', $arr),
find_in_arr('parent', $arr),
find_in_arr('fibonacci', $arr)
//find_in_arr('name', $arr),
//find_in_arr('subject', $arr),
//find_in_arr('type', $arr)
);

Answer 1

应该是：

$arr = array(
    "name" => "Php Master",
    "subject" => "Php",
    "type" => "Articles",
    "items" => array(
        "one" => "Iteration",
        "two" => "Recursion",
        "methods" => array(
            "factorial" => "Recursion",
            "fibonacci" => "Recursion"
         )
    ),
    "parent" => "Larry Ullman"
);

获取多维关联数组的错误T_DOUBLE_ARROW

1 个答案: