array-path's Introduction

array-path

easy to access element of a structure regardless of nesting levels

array_path use '/' as default path seperator,if you want use other character, define ARRAY_PATH_SEPERATOR before include array_path

sample:

<?php
$player = array(
    'level' => 10,
    'silver' => 20,
    'building' => array(
        'blacksmith' => array(
            'level' => 2,
            'store' => array(
                'sword' => 2,
            ),
        ),
    ),
    'heroes' => array(
        array(
            'id' => 1,
            'name' => 'jack',
            'attr' => array(
                'str' => 10,
                'def' => 20,
            ),
        ),
        array(
            'id' => 2,
            'name' => 'jane',
            'attr' => array(
                'str' => 13,
                'def' => 26,
            ),
        ),
    ),
);

array_path_get($player, 'level'); // return 10
array_path_get($player, 'building/blacksmith/level'); // return 2
//combine with any params
array_path_get($player, 'building', 'blacksmith/level'); // return 2
array_path_get($player, 'building/blacksmith', 'level'); // return 2
array_path_get($player, 'building', 'blacksmith', 'level'); // return 2
array_path_get($player, 'heroes', 0, 'attr'); // return array('str' => 10, 'def' => 20)

//last param is the value been set
array_path_set($player, 'heroes/0/attr/str', 15);
array_path_set($player, 'heroes', 0, 'attr', 'str', 15);

array_path_set($player, 'heroes', 2, array('id' => 3));

array_path_unset($player, 'heroes', 1); //this will make heroes node a dict

array_path_walk($player, function($key, $value) {
    echo $key . ":" . $value . "\n";
});
//will output as follow:

// level:10
// silver:20
// building:
// heroes/0/id:1
// heroes/0/name:jack
// heroes/0/attr/str:15
// heroes/0/attr/def:20
// heroes/1/id:2
// heroes/1/name:jane
// heroes/1/attr/str:13
// heroes/1/attr/def:26
// heroes/2/id:3

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