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Preview of the teaching course on September 10, 2018: How to implement paging query data table and classification query for class encapsulation in PHP

Preview of the teaching content of the third online class of PHP Chinese website on September 10, 2018: 1. Teaching topic: How to use PHP to implement paging query data tables? Encapsulate classification queries into classes to achieve code reuse. For more detailed knowledge points, please pay atten...

藏色散人 2018-09-10 10:02:37 0  0  1392

Backslash present in Json

The json parsing result is null. Simulated json data: {"Json parsing": "Supports formatting highlight folding", "Supports XML conversion": "Supports XML conversion to Json, Json to XML", "Json format verification": "More Detailed and accurate er...

高洛峰 2017-05-16 13:03:52 0  1  959

How to convert jpg to webp format in php

jpg takes up too much space and the web page is displayed too slowly. I want to convert the format to webp format. Are there any functions in php that can perform format conversion?

扔個(gè)三星炸死你 2017-07-04 13:46:11 0  1  1286

A new one. I wanted to use XML to create a simple notepad function, so I found a code. After running, you can add it, but you can't delete it.

<?php // Define XML file path and notepad data table name $xmlFilePath = 'data.xml'; $tableName = 'notes'; ? //Create database connection (XML

萌新 2023-10-27 09:05:08 0  0  686

What happens when the network is disconnected when nginx accepts a post request?

The environment uses nginx+php-fpm, and the data requested by post are sent in data=json format, but the json format data in some requests is missing. {Code...} Where should I start when this happens?

大家講道理 2017-05-16 17:25:09 0  1  807

php - Is there any difference between restful api and ordinary interface?

After reading the explanation of restful api on the Internet, I feel that this is no different from the interface we usually write. It transmits data through HTTP get or post requests and returns json format or xml format. Even if restful api has these request methods: PUT: update resources on the s...

迷茫 2017-05-16 13:11:54 0  2  1017

Preview of the teaching course on September 13, 2018: Detailed explanation of the basic content of JSON and AJAX

1. Teaching topic: basic content of JSON. JSON (JavaScript Object Notation) is a lightweight data exchange format. It is based on a subset of ECMAScript. It is easy for people to read and write, and it is also easy for machines to parse and generate (generally used to increase network transmission r...

藏色散人 2018-09-13 11:57:31 0  0  1396

PHP 8.1.2 - Unexpected behavior of DOMDocument when saving and formatting XML data

I tried using a DOMDocument and the code below to output some configuration data to an XML file using loadXML(), saveXML() and save(), but the XML file always has a structure like this (note Configuration/, but not Configuration/Configuration), and I There is no way to make XML indentation work usin...

P粉026665919 2024-03-29 19:06:20 0  1  648

jsonp - The background php returns json. The local test Chinese display is normal, but the server Chinese becomes a question mark.

The back-end PHP gets the data from the MySQL database, and the output is in json format and transmitted to the front desk. The PHP files on the local and server are connected to the same database. During the local test, the json return data is normal in Chinese, but the json return data on the serv...

過(guò)去多啦不再A夢(mèng) 2017-05-16 13:01:57 0  1  645

How to import the contents of RTF format files into the editor in PHP?

The new function needs to extract the content from the RTF format file and put it into the input box of the unavailable input tag, as shown in the following figure. How to implement this function? Is there a method class in PHP to obtain it? .

北城浮生ぅ 2017-12-09 10:49:49 0  0  1194

javascript - How does the applet wx.request render all data to index.wxml

I have been learning mini programs recently and just learned wx.request. I used php+mysql to output a piece of json data format. Link: http://www.likeyunba.com/tmp/... I want to render these on the mini program page. data. index.wxml {code...} index.js {code...} When refreshing the page...

天蓬老師 2017-06-16 09:18:41 0  1  1185

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_(kāi) 2021-10-13 10:21:27 0  6  1142

After the underlying device C language RC4 is encrypted, why can't Java use rc4 to decrypt, but other people's PHP programs can decrypt successfully?

The underlying device is a wifi probe that regularly pushes data to a service. This service address receives the data and uses rc4 to decrypt it. The underlying device rc4 encryption is written in C language. java receiving program {code...} java rc4 decryption program: public class RC4 { {code...} ...

PHP中文網(wǎng) 2017-06-17 09:15:15 0  1  1405

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  1228

Convert file to data stream

Hello heroes, I want to convert the excel file into a data stream and then send it to the interface. .NET uses this class to implement FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read); What method does PHP use to implement it? grateful.

聶順順 2022-10-25 09:17:59 0  5  1090

Create REST API GET method with multiple filters in PHP

I created a RESTAPIGET method in php using parameter id. http://localhost:8012/REST-API/items/expenses?id=2. This works fine, but I want to use http://localhost:8012/REST-API/items/expenses?id=2&year=2022 to get the data. I am new to php and tried all possibilities but not getting the correct re...

P粉937769356 2024-01-29 13:03:56 0  1  529

Teaching course preview for September 12, 2018: Detailed explanation of dom operations in Javascript

1. Teaching topic: DOM operation content in Javascript. (The full name of DOM is Document Object Model, which allows js scripts to control Web pages, windows and documents.) For more detailed explanations of JavaScript knowledge points, please pay attention to tonight's live class on time! Lecturer:...

藏色散人 2018-09-12 14:45:26 0  0  1461

php - How to perform a range search for an age group field in a format similar to 20-35 in MYSQL?

There is a field age in mysql, which stores the age group. The format class is as shown in the figure. If it is 0-0, it is not limited. The current demand is to search according to the age group. For example, I want to find all the people between 25- Data between 34 years old. Then the problem comes...

代言 2017-06-10 09:47:49 0  8  1157

javascript - How vue works with the backend

I wrote a project using vue and ran bulid to generate the dist file. How do I cooperate with the backend? . Previous projects were all about converting html into php files. 1. Does the separation of Vue's front-end and back-end mean that the file format in dist remains unchanged without any changes?...

過(guò)去多啦不再A夢(mèng) 2017-05-19 10:10:27 0  2  678

I want to implement an android phone to obtain server database information. I wonder if I can use PHP to develop a database server.

I'm a newbie. The front-end software for Android phones already exists, using json format for communication, and the back-end service software is tomcat. Now I want to establish a connection between tomcat and mysqli to realize the data acquisition function of the front-end android mobile phone. Can...

hty78 2018-12-17 18:40:19 0  0  1229