Question

拥有此代码：

$text = '{"token_name":"C_ROOT","token_group":"C_BLOCK","group":true,"body":[[{"token_name_org":"T_VARIABLE","token":320,"value":"sort","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE"},{"token_name_org":"C_ASSIGNMENT_EQUAL","line":2,"value":"=","token":"VALUE","token_group":"ASSIGNMENTS"},{"token_name_org":"T_VARIABLE","token":320,"value":"_GET","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE","args":[[{"token_name_org":"T_CONSTANT_ENCAPSED_STRING","token":323,"value":"sort","line":2,"token_group":"STRINGS","token_name":"C_STRING"}]]}],[{"token_name_org":"T_VARIABLE","token":320,"value":"mort","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE"},{"token_name_org":"C_ASSIGNMENT_EQUAL","line":2,"value":"=","token":"VALUE","token_group":"ASSIGNMENTS"},{"token_name_org":"T_VARIABLE","token":320,"value":"_GET","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE","args":[[{"token_name_org":"T_CONSTANT_ENCAPSED_STRING","token":323,"value":"mort","line":2,"token_group":"STRINGS","token_name":"C_STRING"}]]}],[{"token_name_org":"T_VARIABLE","token":320,"value":"bort","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE"},{"token_name_org":"C_ASSIGNMENT_EQUAL","line":2,"value":"=","token":"VALUE","token_group":"ASSIGNMENTS"},{"token_name_org":"T_VARIABLE","token":320,"value":"_GET","line":2,"token_group":"VARIABLES","token_name":"C_VARIABLE","args":[[{"token_name_org":"T_CONSTANT_ENCAPSED_STRING","token":323,"value":"bort","line":2,"token_group":"STRINGS","token_name":"C_STRING"}]]}]]}';

$array = json_decode($text, TRUE);


// Collect the values here.
// Start with an empty string to force a leading '/' in the output
$path = array('');
// Walk the array, put the desired values in $path
array_walk_recursive(
    $array,
    function($value, $key) use (&$path) {      // use reference to modify $path inside the function
        if ($key == 'value' ) {
            $path[] = $value;
        }
    }
);

// Join the collected values and output the result
echo(implode('/', $path));

它遍历数组（树）并为每个分支打印Xpath，直到叶子：

将数组称为JSON：

{
  "token_name": "C_ROOT",
  "token_group": "C_BLOCK",
  "group": true,
  "body": [
    [
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "sort",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE"
      },
      {
        "token_name_org": "C_ASSIGNMENT_EQUAL",
        "line": 2,
        "value": "=",
        "token": "VALUE",
        "token_group": "ASSIGNMENTS"
      },
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "_GET",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE",
        "args": [
          [
            {
              "token_name_org": "T_CONSTANT_ENCAPSED_STRING",
              "token": 323,
              "value": "sort",
              "line": 2,
              "token_group": "STRINGS",
              "token_name": "C_STRING"
            }
          ]
        ]
      }
    ],
    [
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "mort",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE"
      },
      {
        "token_name_org": "C_ASSIGNMENT_EQUAL",
        "line": 2,
        "value": "=",
        "token": "VALUE",
        "token_group": "ASSIGNMENTS"
      },
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "_GET",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE",
        "args": [
          [
            {
              "token_name_org": "T_CONSTANT_ENCAPSED_STRING",
              "token": 323,
              "value": "mort",
              "line": 2,
              "token_group": "STRINGS",
              "token_name": "C_STRING"
            }
          ]
        ]
      }
    ],
    [
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "bort",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE"
      },
      {
        "token_name_org": "C_ASSIGNMENT_EQUAL",
        "line": 2,
        "value": "=",
        "token": "VALUE",
        "token_group": "ASSIGNMENTS"
      },
      {
        "token_name_org": "T_VARIABLE",
        "token": 320,
        "value": "_GET",
        "line": 2,
        "token_group": "VARIABLES",
        "token_name": "C_VARIABLE",
        "args": [
          [
            {
              "token_name_org": "T_CONSTANT_ENCAPSED_STRING",
              "token": 323,
              "value": "bort",
              "line": 2,
              "token_group": "STRINGS",
              "token_name": "C_STRING"
            }
          ]
        ]
      }
    ]
  ]
}

输出：

/sort/=/_GET/sort/mort/=/_GET/mort/bort/=/_GET/bort

任何人都知道如何计算嵌套数组的数量，知道何时停止，分支结束的位置？另外，我如何指定仅搜索＆＃34; sort＆＃34;，branches＆＃34; mort＆＃34;和＆＃34; bort＆＃34;不应该出现。

输出应该基于搜索＆＃34;排序＆＃34;：

/sort/=/_GET/sort

所以伪代码应该是这样的：

查找＆＃34; body＆＃34;带键的数组＆＃34;值＆＃34;等于搜索的内容（即＆＃34; sort＆＃34;）
让所有兄弟姐妹和孩子，孩子的孩子等关键＆＃34;重视＆＃34;直到分支结束的价值。
打印分支
转到下一个正文项目

谢谢，

Answer 1

首先，您必须确定包含body的{{1}}项，然后应用现有代码（首先在函数中提取）：

value == 'sort'

PHP - 数组 - 以Xpath的形式递归打印嵌套数组（Tree）的每个完整分支（直到叶子/叶子）

1 个答案: