The code is as follows. The server will return data several times within 3 seconds. I want the following loop to be terminated after more than 3 seconds. What should I do? while ($mes = socket_read($socket, 1024)) { xxxxx } ...
problem description in the configuration file of nginx, after using the proxy_pass proxy, access the address, the first time 404, the second time normal, the third time 404, the fourth time normal, and so on. Is a 404, refresh is normal, and then refr...
1. Suppose you use swoole to make a web version of Wechat, and the client uses websocket to connect to the server 2. How to realize the private chat of friends (1 to 1), without writing the dead server port 3. Not writing the port means that the server...
Today, when I was writing php code, I suddenly found $b= test ; $par1=1; $par2=2; $a->{$b}($par1,$par2); so how to implement it in javascript? -sharpeval().eval(). var f=data.type; 1string console.log(f); toastr.f(data.message); .. ...
problem description in the development of the mobile client (H5 page), the access control device is controlled by the cloud server. The device communicates through the pure tcp protocol as the tcp client, and the tcp server is set up with GatewayWorke...
there is an array of the first picture below. I want to assemble the same parts of the time Y-m-d together. Is there any other way that I use this way? $new_data = []; foreach ( $data_regiment as $key => $value) { $ne...
question 1: worker, the device on my side has successfully logged in and bound uid,. When receiving heartbeat instructions, I made a judgment on whether uid is online, but when the device successfully logged in for the first time and sent a heartbeat, G...
windows7 s environment built with wamp $key = $this->resetkey($key); $this->redis->hSet( g , d , t ); print_r($this->redis->hGetAll( g ));exit; if($field== * || $field== ){ return $thi...
the specific requirements are unclear. For example, surveillance cameras will be installed in multiple places, and users can see the live streaming of these surveillance cameras. those who have not touched the live broadcast section want to know what ...
.swiper{ vertical-align: top; width: 82%; display: inline-block; margin: 0px 0px 20px 20px; white-space: normal; } <? while ($row = mysqli_fetch_array($sql)){?> <div class="swiper">< div> <? }?&g...
if so, could you tell me how to configure it? Vue-cli ...
how can workerman, like gatewayworker, bind uid and client_id together to send messages to designated users, online, etc., and beg for help from bosses, so that good people can live a safe life! ...
problem description background: centos7.3 server, the hard disk is completely damaged, after finding the dell company to recover data, wen code, attachments and other information intact, but the mysql file after the data copy is damaged, leaving only ...
laravel sava encountered problems saving data 1 the database is divided into tables by date, for example: day_01,day_02. 2 when updating the data, query a piece of data in the day_01 table according to the conditions as follows: $objData = $objModel...
there is a requirement in the project to combine a picture with multiple backgrounds. needs to calculate the position on the base map and then synthesize it. In large quantities. then it can be synthesized now, but the synthesis speed is very slow. It...
if you want to solve the problem, you can learn a lot about the defense against traffic explosion, simultaneous access and server attacks. its own station is apache, ubuntu, linode in other words, it is the back end of php, and the front end of js,htm...
you can try it, $str = strtotime ( "2018-12-31 "); echo date ( Yee, $str), date ( Waring, $str); echo ; $str = strtotime ( "2015-12-31 "); echo date ( Yee, $str), date ( Waring, $str); 2018-12-31 is the first week, and 2015-12-31 is the 5...
front end is UE4, downloading large files from my nginx server through http protocol. File transfer must be encrypted using base64. Baidu has many transmission methods on the Internet. These methods are all aimed at the case that the front end is a ...
it is not the server that sends the time directly to the client, but the Date, when requesting an arbitrary file from the server to do the countdown. The problem is to get [timestamp] or [YY-MM-DD]. 1. When the Date is obtained in the figure, it is Thu....
there is a user ranking table, which needs to be sorted by score and output. If there is a duplicate user, take the highest score of that user now I write DB::select("SELECT nickname, id, fraction, FIND_IN_SET( fraction, ( ...
Why does WeChat Mini Programs use button::after {border: none;} to remove button borders and button::after {border: none;} is not seen on Wechat developer tools...
problem description there is a requirement that the components of this tree are loaded lazily. Can this filterNode only query the data in the current tree? How to query the server the environmental background of the problems and what methods you hav...
Hello, everyone! My younger brother is currently working on a host monitoring system, which needs communication function. requirements are as follows: console establishes communication with multiple hosts; detects whether a host is online in real ti...
the project I built using react-create-app takes more than 3 minutes to start the project using yarn start., yarn start executes npm-run-all-p watch-css start-js,. Is there any way to speed up the start of the project ?...
return <Link to=" " style={{background: red ,width:10,height:10,display: block }}> < Link> <div className={styles.nav}> <li> <Link to=&qu...