demand: api ps: ...
The string can only be swapped for . , : , cannot contain other characters, you only need to verify whether the string contains only the above four characters. $string = 10.0.3.1, 10.0.0.0 16,2001:db8:100:934b::3:1, 2001:db8:100:934b:: 64 ; if (che...
how the mysql database sets user permissions, such as 100 tables. I want to set the user to read only 99 of these tables. There is also a table that does not have access. -sharp-sharp-sharp problem description the environmental background of the probl...
did when processing OPTIONS request if (isset($_SERVER["HTTP_ORIGIN"])) { header( Access-Control-Allow-Origin: . $_SERVER["HTTP_ORIGIN"]); } header("Access-Control-Allow-Headers: SET-COOKIE,COOKI...
* * the string that needs to be matched: p1.html p2.html p3.html . only numbers change. How to write such a rule? * * ...
and how to get the original sql it executes < hr > show binlog events I used this statement. It turns out that this defaults to the first file . ...
use mysqldump to back up data from the MySQL server on the web server if so: mysqldump -hxxx.xxx.xx.xx -uusername -ppwd db table --where="order_id > 4300284 and order_id < 4300293" > xxxx file.sql enter the password in clear text...
for example, data submitted by the user a < b method 1, encode when it is stored in the database, that is, it is a < b method 2, code when writing Html, that is, storing it in the database as is a < b but before writing to the page, it is en...
for example: there is an array queried from the database, normally using echo josn_encode (the output json string after $a); should be [{"id":"1","name":"aaa","age":"23"},{"id":"...
[ {name:a,id: }, {name:c,id: d }, {name:b,id: }, {name:y,id: d }, {name:s,id:6}, {name:p,id:3}, ] how does the data from the background replace all the empty ones with - ...
problem description A rookie. At present, an order automatically generates an invoice, an order form, an invoice form, and an one-to-one relationship. Now the backstage needs to add a function to realize that multiple invoices of a user can be combine...
< H1 > description < H1 > first of all, there is a table with a table structure of CREATE TABLE `article_like` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT id , `article_id` int(10) unsigned NOT NULL COMMENT id , `user_id` int(...
<?php $body = " " " <h1>?< h1> <img src= https: example.com test.jpg title= >"; $keywords = [ [ id =>1, title => , url => https: www.example.com gaimingzi.html ], [ id =&g...
function test ($array) { $tempValueList = []; foreach ($array as $key => $valueList) { foreach ($valueList as $value) { $tempValueList[] = $key . ~ . $value; } } $result ...
problem description there is already a pdf file locally. How can I convert this file into an word document using php code? the environmental background of the problems and what methods you have tried related codes Please paste the code text ...
1. Chinese cannot be included. 2. It must be a combination of letters, numbers, special symbols (any symbol except Chinese) or three combinations. ...
problem description I wonder why an one-dimensional array becomes Boolean after experiencing walk. Ask the boss who knows to help solve the doubt. related codes public function test(){ $arr = [ 20181102 , 20181103 , 20181104 , 201811...
the front end uses the upload component of iview to upload pictures, and the back end uses laravel5.6 to upload pictures. It is found that the picture content is empty using $request- > all () , as shown in the following figure . $_FILES I don t ...
as the title: see in the official documentation that you can use the Artisan::queue queue to execute command. But after looking for it for a long time, I don t know how to set the number of retries. If any boss knows, ask for advice. use Illuminate S...
problem description I now have a rich text string, such as $str= " < span style= " color: rgb (255,0,0); "> < hr > < span style= " color: rgb (255,0,0); "> qq < span style= " color: rgb (0,176240); "> Q Baidu URL (base64 coding of very...
when developing app with flutter, I want to define some commonly used styles the code is as follows: import package:flutter material.dart ; class AppStyle { static Color colorRed = const Color(0xffe04f5f); static Color colorWhite = const Color...
vue gets the picture list from the background, and then v-for traverses the rendering failure. The picture is not displayed. Ask for help part of the code is as follows: no problem, no error data can be reported. The img tag is wide and high and the ...
A SpringBoot project will call a client program implemented in Netty when an address is accessed. The client will communicate with the server also implemented in Netty and get the result, and then return the result in Json format. This is the whole proc...
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>< title> <link rel="stylesheet" href="p8.css"> <script src="p8.js"...
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