The Linux system does not support PHP operations to access the database. Can you please advise on other solutions?

The database of Windows computer software is accessible. If you want to share data, upload the database mdb file to the web server through php, and then php reads the mdb database into html. When the web server is windows, the test is normal. The Linux system does not support PHP operations to acces...

forever 2017-10-31 14:35:35 0  1  1061

Page error, please try again later

Teacher, I followed your operation step by step. When I encapsulated the database access class, the web page prompted: Page error. Please try again later! I assign simple numbers to $res and it can be displayed normally.

奋斗 2018-12-04 22:49:33 0  2  1433

When inserting data encapsulated by the PHP class, the insertion is always unsuccessful and false is returned;

<?php //Database operation class class Model{ Private $host; //Database address Private $user; //Database username Private $pwd; /

A _ Ｑ _ｉ_ 2021-10-13 10:21:27 0  6  1049

python - pymysql reports error 1146 The xls table failed to import into the database. I don't know where the problem lies.

Python 4.3.0 defines a class to operate the local database, and then defines two functions to import the corresponding two tables. The strange thing is that the first function input_HA() can be used and the form is imported successfully, but the second input_ImpactList() does not work. Can anyone he...

漂亮男人 2017-05-18 10:55:11 0  1  1254

syntax - C++11 thread calls member function of object

If you drop a member function of a class, it's probably like this. {Code...} But what if you want a specific object of this class to perform this operation?

迷茫 2017-05-16 13:22:21 0  2  1108

Access class constants using a simple variable containing the constant name

I'm trying to access a class constant in one of my classes: constMY_CONST="value"; If I have a variable to hold the name of this constant like this: $myVar="MY_CONST"; I can somehow access it​ ​What is the value of MY_CONST? self::$myVar This obviously doesn't work since it's for...

P粉691461301 2023-10-20 14:57:01 0  2  637

How to access specific element without using class or id?

I'm trying to manipulate all HTML tags, the code looks like this: varelements=document.getElementsByTagName("<*>") I want to manipulate the variable elements and modify the tags in it. The problem is, I need to add an ID or some kind of class name to them. Is there any other way besi...

P粉106301763 2023-08-31 19:11:14 0  2  521

After cross-class call, method cannot be found

Do static method overloading to achieve chained access to the database exercise demo5.php references the Query.php class and then accesses the method in Query. The page prompts me that the method 'table' is not found in the Database. The following is the source code. I hope it can help. The first er...

方人胥 2021-06-12 17:16:18 1  2  911

Class library, how to use it, is there any detailed method?

My MySQL class library in PHP, after loading it with include, can only define variables. How to use the functions in it? It is useless to write the function name directly. Please give me a detailed method. Thank you.

哈哈哈哈。 2018-07-12 11:54:40 0  6  1303

java - Spring operation database displays garbled Chinese characters?

Operating system: ubuntuIDE:idea Database:Mysql When I use php to operate the database, there is no problem with Chinese display, and Chinese can be displayed normally: But when I am learning spring, when I operate the database, question marks will appear in Chinese, and it cannot be displayed norma...

我想大声告诉你 2017-05-16 13:29:37 0  1  555

Updates to multiple databases - mysql

I'm new to mysql. I have a list of 10 databases containing the same table structure. The same table needs to be updated for each database. Is there an option to do it through phpmyadmin without selecting each database? Or is there a function similar to: USELIKEgc%?

P粉129731808 2023-08-27 11:15:21 0  1  536

Display json type data in blade

Displaying json type data in blade I have a table in my database which stores data and one of the data is of json type, everything is going fine but when I want to display these json in blade the problem starts which is My json data type [![Enter image description here][1]][1] In my blade I use php ...

P粉064448449 2024-03-22 12:05:15 0  1  390

javascript - URL encoding issues when using native ajax

When I use ajax to send a request to the server and carry parameters written in Chinese (GET and POST), I do not use the encoding and decoding functions related to the URL, but the parameters are still transmitted to the server normally and recognized by the PHP script on the server. I would like to...

怪我咯 2017-07-05 10:42:31 0  3  1065

symfony - How to use $this->get non-bundle in your own newly created class.

I am using edusoho. It is developed based on symfony2. There is a service folder in it that provides operations on the database (not the service in the configuration file in symfony2). This service is not a bundle and is not registered in registerBundles. In fact, there are many custom installations...

我想大声告诉你 2017-05-16 16:43:43 0  2  523

In MySQLi, convert query errors into exceptions

I'm trying to convert MySQLi query errors into exceptions, but it's not possible - mysqli_sql_exception is only thrown when connecting to the database fails. I used mysqli_report(MYSQLI_REPORT_STRICT) with a procedural MySQLi function embedded in a custom wrapper class. Previous code: publicfunction...

P粉060528326 2023-08-24 11:53:00 0  2  571

node.js - How does nodejs crawler control the number of requests?

When using nodejs to crawl web page content, if there are too many requests, sometimes an exception will be thrown, prompting errors such as too many connections. Does nodejs have such keywords or libraries for thread locking? Or how to handle it better? First, thank you!

滿天的星座 2017-06-27 09:19:30 0  2  1079

mysqlsh dump and load full schema

I want to use mysqlsh to do the following: dump the complete schema of a given database (not just tables, but functions, triggers and everything related to this database schema, same as mysqldump-RDATABASE>DATABASE.sql) and put this The full schema is loaded into the brand new database I just cre...

P粉662802882 2024-03-26 15:02:15 0  1  506

c# - How does the Find() method in MongoDB.NET return the value of the specified field?

Using ASP.NET MVC5, I want to filter and read specified data from mongoDB based on conditions, similar to select fields1, fields form table where name='123' in a relational database. How should I write a return when operating mongoDB in .NET? Methods for specific fields? ...

高洛峰 2017-05-02 09:22:44 0  1  871

Open source PHP novice entry-level framework WillPHP (similar to ThinkPHP)

WillPHP is a lightweight development and learning MVC framework, an entry-level framework for PHP newbies (similar to ThinkPHP). ###Lightweight and extremely fast size 211KB (uncompressed), 22 initial files loaded (15 with page cache enabled), memory overhead <100KB. ###Main functions: automatic ...

P粉605904125 2022-07-23 16:30:16 0  0  822

How to make methods under classes automatically complete in sublime?

I now use the sublime editor as a PHP learning and development tool. When I followed the study, I found that when Teacher Zhu entered the getLastInsID method under the Db class, he only needed to enter get and 3 Db class containing get would be brought out. method, and then quickly select one of the...

Binbin(斌斌老师) 2019-03-28 13:08:49 0  2  997