< H2 > Code 001 version 7.0 < H2 > <?php $a= ; $a[ 1 ]=""; $a[ 0 ]="zzz"; var_dump($a); echo "PHP:".phpversion(); ?> < H2 > results 001 version 7.0 < H2 > array(2) { [1]=> string(9) "" [0]...
I use js to print a small account to follow. this is the event: I sent with click . $( .cart_subtotal_ +prod_id).html(newVal*price); newVal is quantity price is commodity unit so it will grow like this (this is a follow-up) HTML there is no...
I wrote an H5 project, which is now online. I found that the callback can be completed normally and then the jump can be performed after sharing with friends by using mobile phones such as ip7 plus ip x. But if you share to the moments, the callback ca...
the road is dead! assume that I am now in the store I would like to save my current property information and then press the button to use it. Give it to mysql but I have a problem how can I propose to save it? I now have two must <input type=...
attempts to mimic JS s charCodeAt method, and the result of c .charCodeAt () is 99. I use mb_convert_encoding (99, UTF-8 , Unicode, UCS-2, UCS-4, ASCII ) , but the output remains the same. (converted successfully with chr (99) , but ...
nginx port 80 apache port 8888, load balancer set by fastcgi_pass ...
has been plagued by a problem, that is, the value saved by this redux, . for example, a data structure is obtained through api, but before the fetch comes down, the page will be rendered once. At this time, the data structure does not exist in redux, s...
: public function getMemberPhysicalTestDate() { $arr = MemberPhysicalTest::find() ->alias( mpt ) ->joinWith([ member m ],FALSE) ->where([ m.member_account_id => $this->accountId, ...
could you tell me how to introduce Mini Program s plug-in into the wepy framework? ...
it was like this before switching ...
can multiple projects share the same domain name, and why it is safer to use a domain name ...
most of the time, the lnmp in the online environment does not use root to run. For example, nginx creates a single user, and mysql creates a single user. Code files and even nobody users. I don t quite understand, and there is no relevant explanation on...
Hello, everyone. Recently, the mall project run by the company needs to do data analysis, because the order data in the background (not just orders) are stored in mysql, so I want to collect data to mongodb or elasticsearch for data analysis. At present,...
suppose there are two tables CREATE TABLE IF NOT EXISTS `structure` ( `id` int(11) NOT NULL AUTO_INCREMENT COMMENT , `name` varchar(64) DEFAULT COMMENT , PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT = ; CREATE...
my public and private keys are filled in correctly and generated correctly. The format is PKCS1 ...
I have a problem with batch updates hypothetically I am a loop printing out the box and product ID while($row = mysqli_fetch_array($data)){ <input type="hidden" name="cart_prod_id[]" value="<?=$row[ prod_id ];?>&qu...
such as the following code. Filled with all kinds of if statements. I have no idea where to start the optimization.. I don t know if there is any way to solve this kind of multiple if judgment. Reduce code redundancy and improve efficiency. The functio...
recently, I was learning from WeChat Mini Programs. I hung up with the server provided in the book, and then I found a source code. visual observation is a framework of thinkphp. I don t know how to use it when I download it. The goal I want to achieve ...
if both pieces of data are wrong in automatic verification, how do I return two error messages? ...
what if b wants to use the $time variable in a? public function a(){ $time= 1520452015 ; return $this->fetch(); } public function b(){ } ...
my server is centos7. Why is my log_error stderr instead of the path to a file? The version of mysql I use is 5.7 ...
after ionic3 installs the barcodeScanner plug-in, package Execution failed for task : app:transformDexWithDexForRelease . : npm text version reports error: :app:transformDexWithDexForRelease FAILED FAILURE: Build failed with an exc...
nuxt frame routes are automatically generated. and my jumps are written like this <nuxt-link :to="{name: ,query:{ id:item.detailId }}"> <img :src="item.img"> {{ item.dis}} {{ item.time }} < nuxt-link&...
Linear table (A1 ~ (2),. , ai-1,ai,ai+1,. , an), uses a single linked list storage, the head pointer is H, each node stores an element in the linear table, and now looks for a node with an element value of x. Write the search statements for the followin...
suppose there is item number P1PowerP2and its price 10d20, the first column of the excel table generated by is a drop-down list, the median value of which is P1 or P2, select P1, the first row and the second column automatically populate the price 10 ...