Inheritance problem and solution

In this example, first of all, the parent class is not instantiated. Then, when the subclass does not override the method of the parent class, $cat1->cry() calls the parent class. What does it mean? The subclass method is also written as echo 'animal call..';? What I understand is that if this is...

小周 2018-07-19 11:05:04 0  3  1052

Solution about being unable to start apache

Since I received the push of the original phpstudy today and kept reporting errors, I logged in to the official website and found that it had been updated and added it to the PHPCN toolbox. I couldn't wait to download and update it, and reinstalled System 08. After installing the PHPCN toolbox, I fo...

phpcn_u20597 2017-08-31 01:19:44 0  2  1115

Under what circumstances will Laravel generate a new session file every time it is refreshed?

Under what circumstances will Laravel generate a new session file every time it is refreshed? Solution: Don’t use web middleware

我想大声告诉你 2017-05-16 16:52:51 0  1  429

About jq traversing each() - Stack Overflow

{Code...} As above, I want to correspond the i in each() to the div with class i, but writing $('div[class = i]') like this doesn't work. Please give me a solution.

PHP中文网 2017-05-19 10:12:02 0  1  481

html5 - The keyboard called by the cordova keyboard plug-in is a numeric keyboard (solution)

My current need is to call the phone's numeric keyboard. The technology used is ionic cordova. Now the input box can directly call the phone's keyboard, but what I want now is the numeric keyboard. I have used type="number", but the input box The two-way data binding is string, so an error...

我想大声告诉你 2017-06-17 09:16:42 0  1  1226

php - Is there something wrong with the domestic source of composer?

1. It prompts "https://pkg.phpcomposer.com/repo/packagist/packages.json" 404. I tried to access it but couldn't find it. 2. How should I restore it now, or is there any solution?

黄舟 2017-06-19 09:07:08 0  2  548

node.js - vue-cli cannot create project.

The project cannot be created by secretly converting the vue-cli scaffolding: enter vue init webpack vue-reoject, and vue-cli * failed to download repo vuejs-templates/webpack:unable to verify the first certificate is displayed. After reading the online solutions, there is no solution.

伊谢尔伦 2017-06-24 09:43:37 0  3  1184

Operation and maintenance - coexistence problem of multiple small projects in java tomcat

The scenario is like this. Many h5 API backends are deployed under the same tomcat. Sometimes new projects are deployed or some project bugs are patched. At this time, tomcat will be restarted, which will definitely affect the normal operation of other online services. Project, is there any good sol...

PHP中文网 2017-05-17 10:04:41 0  3  465

javascript - I want to take out a certain attribute of the object in an array (objects are placed in it), and then reconstruct it after deduplication. Is there any good way?

It is such an array. I want to take out the value of team_name in each object. After deduplication, form [{"teamName": "value of team_name",flag: false},{},{},,,] In this form (all flags are false), I thought of a solution (below) and wanted to ask what are the advantages...

大家讲道理 2017-05-19 10:27:10 0  6  731

PHP7.1 cannot obtain session data

My blog backend uses the phalcon framework. I used to use the php7.0 version, but today I changed it to php7.1, and suddenly I found that I couldn’t get the session data. I went to the official website to ask a question, and it was said that it was a session problem with php7.1. One solution they ga...

迷茫 2017-05-16 13:14:02 0  2  935

How to disable margin folding

Is there a way to completely disable margin folding? The only solution I found (named "uncollapsing") is to use a 1 pixel border or a 1 pixel padding. I find this unacceptable: extra pixels complicate calculations unnecessarily. Is there a more reasonable way to disable this margin collaps...

P粉530519234 2023-08-21 23:21:12 0  2  470

Solution: Fix the problem that Vite cannot find the manifest file in the /app/public/build/manifest.json path

It runs fine locally but when I deploy it to the host this problem pops up and don't know what to see or do. Any suggestions? Thanks

P粉739886290 2023-10-29 17:01:41 0  2  818

In the practical PHP imitation iQiyi tutorial, the solution to the problem that the 5-9 permission menu cannot be opened

In the practical PHP imitation iQiyi tutorial, the 5-9 permission menu does not load ‘children’ and the permission menu cannot be opened. Please give me some advice.

絔 2019-08-13 17:06:34 0  2  1399

Connect mobile device to vite using php development server: exposing host

Solution: Thanks to @parastoo it works now. I had to start the development server like this (2 different terminal tabs): vite --host=HOST_IPphpartisanserve --host=HOST_IP and then connect your mobile device (already connected to your WiFi) to: http://HOST_IP: PORTHOST_IP can be seen in the terminal ...

P粉555682718 2023-11-02 12:04:14 0  2  834

How to convert mcrypt_crypt to openssl_crypt?

I'd like to improve a certain WordPress plugin that uses the now obsolete "mcrypt". Instead, I want to use the OpenSSL library to encrypt the submitted data, but during the encryption process I have problems, namely: the openssl_encrypt function returns a different value than mcrypt_encryp...

P粉287345251 2023-09-09 17:35:02 0  1  619

There is padding between elements but not on either side

I'm creating a card with a title and below it are other cards in 2 columns. The problem is that I want padding between the elements, not around them, at least not on the sides, as that would make the title inconsistent with the box below. Here's what I want: I try to give each green card a different...

P粉087074897 2024-03-29 11:40:34 0  2  366

java - The operation cannot be performed because the OLE DB provider "SQLNCLI" for linked server "***" cannot start a distributed transaction. Solution?

Users have asked our project to process data from their original projects at the same time. The databases of the new project and the original project are both sqlserver2005, which are on different servers. The test environment sqlserver2005 is linked to the server sqlserver2012. I'm planning to set ...

迷茫 2017-05-17 10:07:11 0  2  753

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47 0  1  821

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  724

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28 0  1  612