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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  1376

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  1185

php file_get_contents can only be obtained once

It's like this. I'm doing a PHP test to receive large files. The front-end will cut the files into many small bold files. I need to save these small files first and then splice the content. Now when reading the content of each file, only I succeeded for the first time, please teach me!

周沭 2018-12-07 10:05:01 0  0  770

php - string precompilation with tag template

Hello everyone, I encountered a problem when I was using php to do a project. If you want to output a piece of html content with <?php...?>, you usually write the include or require file name at the end for output. But I put this HTML content directly in the database. If I want to outp...

大家講道理 2017-05-16 13:14:51 0  2  472

php 5.6 include php file directly outputs the file content without execution, and php5.2 will be normal.

As shown in the figure, the code for executing the file is as shown below. . . . As a result, the code in dbConfig.php is output directly to the browser. No analysis at all. Copy the code in dbConfig.php to the running php file. It is estimated that version 5.6 has upgraded the initialization and ex...

yoyo 2019-06-07 00:44:09 0  1  1250

javascript - ajax how to request php, php not running

The requirement is this. I have an ajax polling request for a php. In php, a message is actively pushed to a specific WeChat user. There is no output content. I just want it to run. But the actual situation is that there is no output and it does not run. I did a test, a code in php generates a file....

僅有的幸福 2017-05-27 17:41:54 0  8  845

Adding the php_printer extension to php has no effect

Recently I want to use php to connect to a printer to print content. I did a few steps but nothing happened. Can you please help me find the reason: I am using php7.25+Apache version and I downloaded the latest php_printer.dll. After downloading, unzip the file and place it in the php7.25 version di...

青松哥 2019-03-29 17:30:39 0  3  1976

How to use file_get_contents to open a php file, search for the specified string, and add other content under it in a new line?

I want to implement a function, because every time the system I use is updated, it will overwrite the piece of code I added. I want to implement this function. If it overwrites my code, I will open that piece of code and add it again. This is this code. If it is covered, I will open this file php fi...

淡淡煙草味 2017-06-28 09:23:06 0  3  1117

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  1440

How to disable PHP reporting SQL errors?

I have my own PHP data class that logs MySQL errors to a txt file using mysqli_error($this->conn). Everything was working fine until I set PHP error handling to E_ALL. Now PHP intercepts the error and it doesn't have a chance to be handled by my MySQL error handler. This wouldn't be a problem exc...

P粉550257856 2023-09-05 17:14:24 0  1  796

Encountering a black screen when trying to retrieve user data from the backend

On the frontend I'm using ReactJs and I've been trying to get the logged in user's data from the backend (PHP) via axios.get, set a condition for the user and if met they will be returned to the login page. The backend is returning nothing and appears to return to login. The situation is because the...

P粉921130067 2024-03-29 11:08:15 0  1  487

Is it possible to read and display the contents of a txt file every few seconds using HTML?

I have a txt file that is updated with new data every few seconds. It is stored and generated on the Raspberry Pi, which will also act as a server. I wish to add its content to the html code for display. It should update without manually reloading the page. Is there a way to do this? Maybe use AJAX,...

P粉529581199 2023-09-07 08:46:12 0  2  765

I know how to cut pictures on the front end and want to learn PHP website development. I would like to ask for a complete class video of the physical class of a first-line PHP institution in Beijing.

I know how to cut pictures on the front end and want to learn PHP website development. I would like to ask for a complete class video of the physical class of a first-line PHP institution in Beijing. I learned front-end cutting at an institution before, and then became a cutter, but I didn’t have mu...

. 2017-08-28 14:28:41 0  1  1506

PHP Chinese website large-scale live broadcast public welfare free class registration post. . .

PHP Chinese website’s free public welfare live broadcast class in June is facing 6.18. Instead of frantically buying your hands, it is better to study quietly. We have carefully prepared two free live broadcast courses for you: 1. One-week introduction to Web front-end development 1. Course name: [X...

PHP中文網(wǎng) 2018-06-04 13:03:08 32  848  67219

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  586

Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use

明民 2017-10-10 17:04:14 0  2  1379

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

劉袁銘 2017-10-10 19:25:59 0  4  2935

mcrypt_get_key_size()

To use mcrypt_get_key_size() in php study, how to enable mcrypt_

劉袁銘 2017-10-10 19:47:34 0  1  1167

Detecting login status and preventing repeated login status in TP5 - My page is wrong

冥冥之中天注定 2017-10-10 22:49:15 0  0  1180

Issues with resending WeChat public account template messages?

For example: I am using PHP to develop WeChat public accounts. If I send a template message, the WeChat client may receive 1-3 messages. I checked Baidu and said that the WeChat server will resend in 5 seconds. How to solve this problem?

飛揚 2017-10-11 08:00:11 0  0  1137