Home Backend Development PHP Tutorial CRC32,很容易冲突啊该如何处理

CRC32,很容易冲突啊该如何处理

Jun 13, 2016 pm 01:41 PM
crc quot tmp

CRC32,很容易冲突啊
散分,生日悖论果然不是骗人的

附测试代码,很容易算出一对

PHP code
<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->
define('R',    1e5);
$_CRC32    = array();
for($i=0;;++$i)
{
    $tmp    = sprintf('%X', crc32($i));
    if(isset($_CRC32[$tmp]))
    {
        echo    "{$_CRC32[$tmp]}#{$i}\n";
        break;
    }
    if($i<r></r>
Copy after login


------解决方案--------------------
一万米又来调戏我们了
------解决方案--------------------
300分资助我吧,我的可用分只有[b]130[/b]分了,可怜的
------解决方案--------------------
可怜的小白 来接分 不赞助 我申请小号去
------解决方案--------------------
额。。。没看明白什么代码什么意思
------解决方案--------------------
接住了---------------------++++++++++++
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

The cleaning principle of /tmp/ folder in Linux system and the role of tmp file The cleaning principle of /tmp/ folder in Linux system and the role of tmp file Dec 21, 2023 pm 05:36 PM

Most of the .tmp files are files left behind due to abnormal shutdown or crash. These temporary scratch disks have no use after you restart the computer, so you can safely delete them. When you use the Windows operating system, you may often find some files with the suffix TMP in the root directory of the C drive, and you will also find a TEMP directory in the Windows directory. TMP files are temporary files generated by various software or systems. , also known as junk files. Temporary files generated by Windows are essentially the same as virtual memory, except that temporary files are more targeted than virtual memory and only serve a certain program. And its specificity has caused many novices to be intimidated by it and not delete it.

What does tmp mean in linux What does tmp mean in linux Mar 10, 2023 am 09:26 AM

In Linux, tmp refers to a folder that stores temporary files. This folder contains temporary files created by the system and users; the default time limit of the tmp folder is 30 days. Files under tmp that are not accessed for 30 days will be automatically deleted by the system. of.

How to access and clean junk files in /tmp directory in CentOS 7? How to access and clean junk files in /tmp directory in CentOS 7? Dec 27, 2023 pm 09:10 PM

There is a lot of garbage in the tmp directory in the centos7 system. If you want to clear the garbage, how should you do it? Let’s take a look at the detailed tutorial below. To view the list of files in the tmp file directory, execute the command cdtmp/ to switch to the current file directory of tmp, and execute the ll command to view the list of files in the current directory. As shown below. Use the rm command to delete files. It should be noted that the rm command deletes files from the system forever. Therefore, it is recommended that when using the rm command, it is best to give a prompt before deleting the file. Use the command rm-i file name, wait for the user to confirm deletion (y) or skip deletion (n), and the system will perform corresponding operations. As shown below.

What to do if crc verification error occurs What to do if crc verification error occurs Feb 22, 2023 pm 03:30 PM

Solutions to crc verification errors: 1. Re-download the installation package; 2. Check "Keep error files" when decompressing, and then check whether the file is isolated in the anti-virus software; 3. Check for hardware problems and replace the hardware. .

What file is TmP? What file is TmP? Dec 25, 2023 pm 03:39 PM

The "tmp" file is a temporary file, usually generated by the operating system or program during operation, and is used to store temporary data or intermediate results when the program is running. These files are mainly used to help the program execute smoothly, but they are usually automatically deleted after the program is executed. tmp files can usually be found in the root directory of the C drive on Windows systems. However, tmp files are associated with a specific application or system, so their specific content and purpose may vary from application to application.

What file is tmp What file is tmp Feb 22, 2023 pm 02:35 PM

tmp is a temporary file generated by various software or systems, which is often called junk file. Usually, programs that create temporary files delete them when they are finished, but sometimes these files are retained. There may be many reasons why temporary files are retained: the program may be interrupted before completing the installation, or crash during restart; these files generally have little use value, and we can delete them directly.

php提交表单通过后,弹出的对话框怎样在当前页弹出,该如何解决 php提交表单通过后,弹出的对话框怎样在当前页弹出,该如何解决 Jun 13, 2016 am 10:23 AM

php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code

What kind of file is tmp? Can it be deleted? What kind of file is tmp? Can it be deleted? Feb 27, 2023 am 10:33 AM

tmp is a temporary file generated by various software or systems, which is often referred to as a junk file. tmp files can be deleted, and not deleting them for a long time will slow down the computer and cause lags. Deletion method: 1. Press the "Win+R" keys to open the "Run" dialog window; 2. Enter "cmd" and click the "Enter" key; 3. Execute "C:UsersAdministrator>del /f /s /q %systemdrive %*.tmp" command, the system will automatically delete all tmp files.

See all articles