jsonDecodeDepth.php

<?php


$tests = array(
    array('{"test":""}', 2),
    array('{"test": {}}', 3),
    array('{"test": {}, "test2": ""}', 3),
    array('{"test": {}, "test2": {}}', 3),
    array('{"test": {}, "test2": {"test3": ""}}', 3),
    array('{"test": {}, "test2": {"test3": {}}}', 4),
);



function decode($json, $depth)
{
    var_dump($json);

    var_dump('depth: '.$depth);

    json_decode($json, false, $depth);
    var_dump(decodeException(json_last_error()));
}

function decodeException($code)
{
    $message = "";

    switch ($code) {
        case JSON_ERROR_NONE:
            $message = "JSON_ERROR_NONE: No Error";
            break;
        case JSON_ERROR_DEPTH:
            $message = 'JSON_ERROR_DEPTH: The maximum stack depth has been exceeded';
            break;
        case JSON_ERROR_STATE_MISMATCH:
            $message = 'JSON_ERROR_STATE_MISMATCH: Invalid or malformed JSON';
            break;
        case JSON_ERROR_CTRL_CHAR:
            $message = 'JSON_ERROR_CTRL_CHAR: Control character error, possibly incorrectly encoded';
            break;
        case JSON_ERROR_UTF8:
            $message = 'JSON_ERROR_UTF8: Malformed UTF-8 characters, possibly incorrectly encoded';
            break;
        case JSON_ERROR_SYNTAX:
            $message = 'JSON_ERROR_SYNTAX: The JSON syntax is not correct';
            break;
        default:
            $message = 'Syntax error '.$code;
    }

    return $message;
}