How to get the data of database update without getting old data, seeking ideas

Using SetInterval with Ajax to get once per second, how to ensure that the new data does not contain the old data ... Reply content: Using SetInterval with Ajax to get once per second, how to ensure that the new data does not contain the old

The design method of the failure of the URL access once

For example, a URL like the following: https://foo.com/? timestamp= time &nonce= random string &sign = signature There are several ways I can think of this:1, the Storage database: The first visit, the URL of the library, the second visit,

PHP5.2 under Preg_match match Chinese question?

Background notes: My local development environment is 5.5, the actual operating environment is 5.2 (no choice ... )。 Now the same regular match code preg_match("/^[A-Za-z0-9\x{4e00}-\x{9fa5}]+$/u",$name) 5.5 can be used normally, 5.2

PHP cousin Path Reference words, how to write a simple point?

Like what C:\AppServ\www\YB-PHP\PathDemo\China\ShanDong\LinYi\03.php To import C:\AppServ\www\YB-PHP\PathDemo\China\JiangSu\NanJing\NanJingEcho.php You have to write: include('../../JiangSu/NanJing/NanJingEcho.php'); It's always easy to make a few

Composer installed Php-cs-fixer, using--level error

Through php-cs-fixer fix path/ --level=psr2 This command will report the following error, without adding will --level not error, but the official website has this parameter Version:Ubuntu 16.04 LTSPHP CS Fixer version 2.0-dev by Fabien Potencier

PHP Curl_multi_exec Official Website Example why there are two times do while

It's hard to use, and this example doesn't work at 5.5 (someone in the User contributed Notes below provides a solution) 其中这一部分,谁能帮忙解释一下,用法也太怪了吧! do { $mrc = curl_multi_exec($mh, $active);//位置1} while ($mrc ==

On the problem of Laravel Middle Road

Using in Routing Route::controller (' login ', ' Logincontroller '); So do not take the construction method has what solution Reply content: Using in RoutingRoute::controller (' login ', ' Logincontroller ');So do not take the construction

PHP to determine the true format of the upload video, not simply to use the suffix to judge, how to do?

How do you know the true format of a video by uploading it in PHP post? Reply content: How do you know the true format of a video by uploading it in PHP post? $_FILES['文件名']['type']Or $finfo = finfo_open(FILEINFO_MIME);$mimetype =

Is it not safe to put the user ID in the type= "hidden" input in the module that modifies the data?

Is it particularly unsafe if you don't put it in here, what are the big sites that have been put in place when you make changes or deletions? Reply content:Then do you modify the data later is not dependent on the user this commit this ID? If I as a

is learning PHP self-taught or is it better to have a training session?

Novice, want to get started quickly, in 3 years, the kind of exploded. Reply content:Self-Baidu " Wisdom Podcast"The training organization's website has an almost complete set of learning videos, and the information is very informative. You can

PHP5 How to implement multithreading (asynchronous execution of multiple functions)?

I have a website Baidu Stick cloud Rob the second floor code by Chang-dimensional , the function is probably in Baidu bar inside Rob second floor, now this website has more than 200 users, I originally the execution process in "BUG" ◇15-07-26 "water

What are the benefits of PHP using MYSQLI's prepare statement?

Reply content:225-228 pages of "High Performance MySQL" book. It's very detailed and I'll simply sort it out: Benefits: (1) Parse the query only once (2) Perform some query optimization steps only once (3) Sending parameters via the binary protocol

WeChat payment, 1 times after payment, callback notice as if the request has many times, so will not be repeated storage ...

This is a 1-time callback notification, you can see that there are 7, and the time interval is quite large. This will not be repeated verification of payment information and storage, the same would increase the pressure on the server I have feedback

What development language can replace PHP?

has been doing the site front-end, now want to learn about the back end, do not know that now PHP, there is no other back-end better development language. C, GO, Ruby can these languages be used to develop the web? And Nodejs This How to learn the

How does the word-broadcast automatic combat system guarantee that there are no loopholes?

vps

Now is to do a text-based web game, fighting mode using text broadcast mode Have seen a person wrote that the local fight calculation, and finally post the results of the fight to the server, which is prone to vulnerability, directly in the local

How to rate this article saying WordPress will be rewritten with node. js?

———————— Note ———————— This is a false news, already known to all people. Please read the topic carefully after you want to repeat your comments. You laugh at the Lord and part of the answer "do not look at the Web page", while not reading the

22-year-old two senior student in communication engineering. From a freshman's small fresh to the present very fat boy. The future is confused, how to do?

The former middle school teacher admitted to the university can casually play, I also really casually played the university four years. People around think I may be a progressive, but only I know that I am four years of white university, and spent 2

How is Zend opcode executed? Do you want to compile the machine code and execute it?

PHP was first compiled by the Zend engine to opcode, then how is opcode executed by zend_execute? Is it finally compiled into machine code? How is the process? Reply content:Now that the title mentions Zend, the problem is specifically PHP Zend

What is PHP artifice?

Reply content:Since the PHP play closed, everyone jump five floor, not laborious. 1. Foundation: A sentence implementation defines a function and immediately invokes We often do that in JavaScript because variable pollution is an intolerable thing.

Php-html drop-down menu selection problem

phphtml data Novice, temporarily arranged to write HTML, related to the screening problem, the first drop-down menu can pass my preset value, called Type bar, type has 123456 major categories, the second drop-down menu is based on the PHP link

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