3v4l.org

run code in 300+ PHP versions simultaneously

@ 2016-04-29T11:03:21Z

<?php

function isItEnd($array){
    return !array_key_exists('ancestors', $array);
}

function getThirdFromEnd($category){
    if(!isItEnd($category)){
        $away_from_parent = getThirdFromEnd($category['ancestors']['BrowseNode']);
        if($away_from_parent == 0){
            $away_from_parent = $category['ancestors']['BrowseNode'];
        } else {
            $away_from_parent--;
        }
    } else {
        $away_from_parent = 2;
    }
    return $away_from_parent;
}

$category = array(
    "BrowseNodeId" => "11256",
    "name"=> "Folklore & Mythology",
    "ancestors" => array(
        "BrowseNode" => array(
            "BrowseNodeId" => "11232",
            "name"=> "Social Sciences",
            "ancestors" => array(
                "BrowseNode" => array(
                    "BrowseNodeId" => "3377866011",
                    "name"=> "Politics & Social Sciences",
                    "ancestors" => array(
                        "BrowseNode" => array(
                            "BrowseNodeId" => "1000",
                            "name"=> "Subjects",
                            "IsCategoryRoot" => true,
                            "ancestors" => array(
                                "BrowseNode" => array(
                                    "BrowseNodeId" => "283155",
                                    "name"=> "Books",
                                ),
                            ),
                        ),
                    ),
                ),
            ),
        ),
    ),
);

$cat = getThirdFromEnd($category);
echo "<pre>" . print_r($cat, 1) . "</pre>";

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught TypeError: Cannot decrement array in /in/SeKvM:13 Stack trace: #0 /in/SeKvM(51): getThirdFromEnd(Array) #1 {main} thrown in /in/SeKvM on line 13
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: <pre>Array ( [BrowseNodeId] => 3377866011 [name] => Politics & Social Sciences [ancestors] => Array ( [BrowseNode] => Array ( [BrowseNodeId] => 1000 [name] => Subjects [IsCategoryRoot] => 1 [ancestors] => Array ( [BrowseNode] => Array ( [BrowseNodeId] => 283155 [name] => Books ) ) ) ) ) </pre>

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236.78 ms | 404 KiB | 335 Q