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I have known PHP Chinese website for a long time

I have been paying attention to the PHP Chinese website for a long time, and I have watched the PHP Chinese website slowly get better. I have been liking PHP for a long time. PHP is a very simple language, suitable for developing what you want very quickly. To learn PHP, I came to the PHP Chinese we...

kgy 2020-06-02 18:28:57

PHP - cannot open stream: No such file or directory

In PHP scripts, whether calling include(), require(), fopen() or their derived classes, such as include_once, require_once, or even move_uploaded_file(), you often encounter the error or warning: Unable to open stream: No such file or directory. What is a good process for quickly finding the root ca...

P粉145543872 2023-08-23 16:30:33

javascript - How to click the page button to open the local exe program on the computer?

For example: To realize this function in the internal system, click the page button to automatically open the application on the computer, such as Feiqiu. . . It's best to do this on chrome. . Has anyone done something similar? Thank you so much

typecho 2017-06-12 09:32:20

About PHP and JAVA 3DES encryption issues

I want to write an encryption class in Java using PHP, but I saw this writing method in Java and it gave me a headache. Totally illogical. I found a complete class and wanted to refer to it. After many experiments, I could not translate the encryption class I uploaded into PHP. Please help me. Thank...

给我你的怀抱 2017-06-15 09:21:44

Advisory

Hello, Mr. Miejie, I really enjoyed listening to your Php class. I would like to ask what tool Ouyang Ke’s blog in the tutorial was written with. Are there any ready-made tools available?

杜勇兵 2022-11-19 18:34:10

Tips to improve WooCommerce member query speed: Optimize MySQL index

I have a WooCommerce membership based website using the Teams for WooCommerce membership extension. Despite having a huge user base (>70,000 users), it performs very well 95% of the time. We receive approximately 10,000 visits per day with response times of under one second. During peak seasons w...

P粉333186285 2023-08-26 11:09:08

Interface Document - How does the java background interface conveniently return restful data?

When using spring mvc, the json data you pass to the front end (ios/android) is converted to beans by spring, right? Are these beans all defined java classes? Because I feel that the json required by the front-end is very flexible. If the back-end is encapsulated with several large and complete bean...

PHP中文网 2017-05-27 17:39:59

android - java generics do not support arrays, so is there any convenient way for RxJava's Map collection to define and obtain a string of common parent class collection data?

I used just to send the obtained data (json), and then processed the obtained data through map, converted it into a map, and then subscribed. In the actual process, I found that there were many similar operations, so I wanted to encapsulate them. , I want to use generics to specify the target collec...

PHP中文网 2017-05-16 13:33:04

Why do we need to use PHP exception codes? What are the usage scenarios of PHP exception code?

Ok, this is a very stupid question to many people, but I hope to get an overwhelming response :) When I throw an exception in PHP, I can add a code to the message. I catch the exception and handle it based on its type (like InvalidArgumentException or OutOfBoundException). I log the message or displ...

P粉476547076 2023-08-24 12:31:44

Maps Google API returns wrong coordinates

I use this PHP function to get the coordinates but they are always wrong. Sometimes close, sometimes very far from the right point.

P粉773659687 2023-07-26 15:39:29

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

Will pass variables in SELECT statement in MySQL 8

I'm trying a simple select statement with variables. If I change the statement like concat_ws('%',@S,'%'); it works fine. to a string. It seems that the select statement does not select the SET variable. Thank you for your help. I am using Mysql80 workbench. SET@S="product";SELECTdistincti...

P粉764836448 2024-02-17 20:03:04

Regarding the differences caused by quick editing such as ul>li{PHP Chinese website $$}*6

Hello teacher, I am using phpstrom2018.3 as an IDE to learn. When writing code using a shortcut like "ul>li{PHP Chinese Network $$}*6", the serial number starts from 1, not zero. There will be some differences and misunderstandings. How to solve this problem? Thanks!

iUnicorn 2019-03-20 11:59:38

ThinkPHP-Casbin: a Casbin extension package specially customized for ThinkPHP5.1

PHP -Casbin: A PHP permission management framework that supports ACL, RBAC, and ABAC multiple models. This extension package is very useful, but it is limited to the level. I hope Brother Zhu can record a video to help PHP enthusiasts analyze the implementation ideas and usage methods. Casbin offici...

勇哥 2019-06-12 21:54:25

python - django model uses get or filter

As shown in the following code, the instance object will be obtained based on the instance ID. As we all know, if the ID does not exist when getting, an exception will occur, but the filter will not. So, I would like to ask everyone, in a situation like this, is it better to use get and handle the e...

女神的闺蜜爱上我 2017-06-12 09:21:33

Performance impact of creating tables in SQLite

In SQLite, there is a CREATETABLEIFNOTEXISTS clause. I can't find a reason why this is not good to use performance-wise. For every SQLite query I call it beforehand to make things easier. Since SQLite is very fast, is there anything wrong with doing this? Is this just bad practice VS actually a perf...

P粉269847997 2024-01-29 00:19:04