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Linux 4.18.0-553.54.1.lve.el8.x86_64

PHP Version:

7.3.33

User:

u435171512

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/home/u435171512/domains/my-little-rocks.com/public_html/application/libraries/Facebook

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✏️ Editing: polyfills.php

<?php
/**
 * Copyright 2017 Facebook, Inc.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to
 * use, copy, modify, and distribute this software in source code or binary
 * form for use in connection with the web services and APIs provided by
 * Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use
 * of this software is subject to the Facebook Developer Principles and
 * Policies [http://developers.facebook.com/policy/]. This copyright notice
 * shall be included in all copies or substantial portions of the software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 */

/**
 * @see https://github.com/sarciszewski/php-future/blob/master/src/Security.php#L37-L51
 */
if (!function_exists('hash_equals')) {
    function hash_equals($knownString, $userString)
    {
        if (function_exists('mb_strlen')) {
            $kLen = mb_strlen($knownString, '8bit');
            $uLen = mb_strlen($userString, '8bit');
        } else {
            $kLen = strlen($knownString);
            $uLen = strlen($userString);
        }
        if ($kLen !== $uLen) {
            return false;
        }
        $result = 0;
        for ($i = 0; $i < $kLen; $i++) {
            $result |= (ord($knownString[$i]) ^ ord($userString[$i]));
        }

// They are only identical strings if $result is exactly 0...
        return 0 === $result;
    }
}

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