admin-php-module/models/Base.php

<?php

namespace App\Component\Models;

use Illuminate\Support\Facades\Log;

class Base
{
    public static function tofloat($num) {
        $dotPos = strrpos($num, '.');
        $commaPos = strrpos($num, ',');
        $sep = (($dotPos > $commaPos) && $dotPos) ? $dotPos :
            ((($commaPos > $dotPos) && $commaPos) ? $commaPos : false);

        if (!$sep) {
            return floatval(preg_replace("/[^0-9]/", "", $num));
        }

        return floatval(
            preg_replace("/[^0-9]/", "", substr($num, 0, $sep)) . '.' .
            preg_replace("/[^0-9]/", "", substr($num, $sep+1, strlen($num)))
        );
    }

    public static function validate_json($string)
    {
        // decode the JSON data
        $result = json_decode(utf8_encode($string), true, JSON_INVALID_UTF8_SUBSTITUTE);

        // switch and check possible JSON errors
        switch (json_last_error()) {
            case JSON_ERROR_NONE:
                $error = ''; // JSON is valid // No error has occurred
                break;
            case JSON_ERROR_DEPTH:
                $error = 'The maximum stack depth has been exceeded.';
                break;
            case JSON_ERROR_STATE_MISMATCH:
                $error = 'Invalid or malformed JSON.';
                break;
            case JSON_ERROR_CTRL_CHAR:
                $error = 'Control character error, possibly incorrectly encoded.';
                break;
            case JSON_ERROR_SYNTAX:
                $error = 'Syntax error, malformed JSON.';
                break;
            // PHP >= 5.3.3
            case JSON_ERROR_UTF8:
                $error = 'Malformed UTF-8 characters, possibly incorrectly encoded.';
                break;
            // PHP >= 5.5.0
            case JSON_ERROR_RECURSION:
                $error = 'One or more recursive references in the value to be encoded.';
                break;
            // PHP >= 5.5.0
            case JSON_ERROR_INF_OR_NAN:
                $error = 'One or more NAN or INF values in the value to be encoded.';
                break;
            case JSON_ERROR_UNSUPPORTED_TYPE:
                $error = 'A value of a type that cannot be encoded was given.';
                break;
            default:
                $error = 'Unknown JSON error occured.';
                break;
        }

        if ($error !== '') {
            // throw the Exception or exit // or whatever :)
            return false;
        }

        // everything is OK
        return true;
    }

    public static function data_decode($data)
    {
        $alph = [
            "А", "Б", "В", "Г", "Д",
            "Е", "Ё", "Ж", "З", "И",
            "Й", "К", "Л", "М", "Н",
            "О", "П", "Р", "С", "Т",
            "У", "Ф", "Х", "Ц", "Ч",
            "Ш", "Щ", "Ъ", "Ы", "Ь",
            "Э", "Ю", "Я",
            "а", "б", "в", "г", "д",
            "е", "ё", "ж", "з", "и",
            "й", "к", "л", "м", "н",
            "о", "п", "р", "с", "т",
            "у", "ф", "х", "ц", "ч",
            "ш", "щ", "ъ", "ы", "ь",
            "э", "ю", "я",
        ];

        foreach ($alph as $key => $letter) {
            $haystack = mb_convert_encoding($data, "CP1251", "UTF-8");
            $needle = $letter;
            $pos = strripos($haystack, $needle);
            if ($pos === false) {
                $after_conv = false;
            } else {
                $after_conv = true;
                break;
            }
        }

        if (!$after_conv) {
            foreach ($alph as $key => $letter) {
                $haystack = $data;
                $needle = $letter;
                $pos = strripos($haystack, $needle);
                if ($pos === false) {
                    $before_conv = false;
                } else {
                    $before_conv = true;
                    break;
                }
            }
        }

        if ($after_conv) {
            $retval = mb_convert_encoding($data, "CP1251", "UTF-8");
        } elseif ($before_conv) {
            $retval = $data;
        } else {
            $retval = $data;
        }
        return $retval;
    }

    public static function customBase64Decode($data) {
        $base64 = $data;
        $base64 = str_replace(array('\r\n', '\r', '\n'), '', $base64);
        $base64 = str_replace(' ', '', $base64);
        $decoded = base64_decode($base64);
        $decoded = mb_convert_encoding($decoded, 'UTF-8');
        log::debug(self::ascii2hex($decoded));


        return $decoded;
    }

    public static function ascii2hex($ascii) {
        $hex = '';
        for ($i = 0; $i < strlen($ascii); $i++) {
            $byte = strtoupper(dechex(ord($ascii{$i})));
            $byte = str_repeat('0', 2 - strlen($byte)).$byte;
            $hex.=$byte." ";
        }
        return $hex;
    }

    public static function in_array_r($needle, $haystack, $strict = false) {
        foreach ($haystack as $item) {
            if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && self::in_array_r($needle, $item, $strict))) {
                return true;
            }
        }
        return false;
    }
}