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javascript - How to optimize jquery loop append operation?

There is a page display function in the project. It is necessary to add canvas tags to the tags to which the specified class belongs. Because there is a query function, a corresponding number of canvas tags must be added according to the amount of data queried. I am now using a loop operation. First...

滿天的星座 2017-06-28 09:27:19 0  1  764

Where is the file with this path?

Function: include('pass in file path and file name') function: The function of this function is to pass in the file with the specified path and let PHP include it for execution.

~ 2019-03-14 16:13:58 0  2  1475

How to develop barcode function in thinkphp5

I want to implement a function that can generate barcodes in the system and use a barcode scanner to scan the barcodes to enter and exit the warehouse. I use thinkphp5 for development. I searched a lot of information and took the following steps. 1. Copy the barcode class folder barcode to the exten...

Jennifer 2018-04-12 13:09:43 0  0  1317

suble.class.php uses the constructor syntax of PHP4, that is, the method name is the same as the class name. This syntax will be used in the future.

The function has been implemented, but it has not been tested in other PHP versions. Dz Application Center customer service said: suble.class.php uses the constructor syntax of PHP4, that is, the method name is the same as the class name. This syntax will not be supported in future PHP versions; ple...

°執(zhí)著. 2018-11-25 19:19:16 0  0  1007

Folder dragging demonstrated in phpstorm

I saw in the video that after dragging phpstorm to change the folder, the namespace of the class will change accordingly. The phpstorm2019.3 I am using will not change automatically. Where can I set or configure this function?

揚舞水中 2020-02-14 01:42:24 0  1  1452

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

JavaScript: Enter the selector of the specified type (only three simple CSS selectors such as id, class, and tagName are supported)

1. Write a JavaScript function and input a selector of a specified type (it only needs to support three simple CSS selectors of id, class, and tagName, and does not need to be compatible with combined selectors). The problem is: the following regular matching cannot be understood, var reg = / ^(#)?(...

PHP中文網(wǎng) 2017-06-26 10:57:53 0  4  1147

How to handle Uncaught Error: PHP/Composer class not found?

I'm starting a project with oop as a beginner and I'm trying to use some classes that I think will be recognized by vscode and composer because when I click on their namespace it directs me to the correct class, but when When I run the code in the browser I get a fatal error telling me that my class...

P粉304704653 2023-09-04 13:46:14 0  1  634

There is a problem after modifying the default configuration of ThinkPHP5.0

Make the following modifications according to the teacher's tutorial: <?phpnamespace app\index\controller;class Index{ public function index() { return 'PHP Chinese website'; }} After the modification, enter the virtual host in the address bar of the page

王欣然 2019-08-21 21:51:45 0  0  1251

Uncaught TypeError: Cannot set property of undefined (set 'innerHTML')

I'm trying to create a webpage using php, on an element of class "Continuous TextBox" (defined by my class), when clicked I have to start a Javascript function that should change the content of another function id "harta-modal" ” element, but that won’t happen. I keep getting the...

P粉022140576 2023-11-08 21:06:09 0  1  942

Use PHP's system to execute a terminal command, and then how to use PHP to terminate the command?

Since we need to obtain all the file information of Qiniu as quickly as possible, we chose Qiniu's command line tool. After executing the command using PHP's system function, how do I terminate the command using PHP?

ringa_lee 2017-06-07 09:23:01 0  1  922

PHP: How to copy all images in a subfolder into a single folder (no need to create subfolders!)

For my wife's birthday party, I set up a website where I collected images of party guests and then created a nice book as a keepsake. Guests have an account and upload images to "their" folder. I now have a tool that dynamically creates slideshows from pictures - but unfortunately it canno...

P粉877114798 2024-01-29 09:16:15 0  1  525

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(斌斌老師) 2019-03-28 13:08:49 0  2  1075

laravel5.8 front desk auth login cannot

I am a student in the eighth phase of the PHP online class. I followed the laravel auth video of Teacher Ximen to expand a front-end login function. However, after the login process was completed, the transfer to the next page was intercepted by the middleware, and there was no error in the code exe...

不是一般的人 2020-05-12 18:17:04 0  4  2281

Why do PDO and PDOStatement exist at the same time? What are the considerations for this design?

Problem description: We all know that since PHP 5.1.0, PDO has been a standard part of PHP. PDO provides three classes: PDO, PDOStatement and PDOException. Needless to say, the PDOException class depends on its name for function and positioning. It's all clear. So the question comes: why at the same...

我想大聲告訴你 2017-05-16 13:11:25 0  3  867

There is already a good solution for automatic search prompts (completion), why reinvent the wheel?

Implementing an intelligent prompt function requires a lot of knowledge in JavaScript, ajax, databases, and jsp/php. If the amount of data is large, special optimization is required. It is not appropriate to spend too much effort on a small function. But is this a dispensable function? It is definit...

panie 2017-06-29 16:03:09 0  1  1888

新手囼復(fù) Call to undefined function add_action() in

PHP Warning: PHP Startup: in Unknown on line 0 PHP Fatal error: Call to undefined function add_action() in D:\wwwroot What is the reason for such an error? I found a lot of information on the Internet and modified php.ini, but it didn't work! Everything else runs normally! There is just this section...

盧子墨 2019-03-18 23:44:07 0  5  1282

How to get openid after scanning the QR code image generated with PHP?

I used the PHP QR code generation class library to generate a QR code picture (not generated by the WeChat interface). I want to get the openid of a WeChat user after scanning the QR code. How can I implement this function? (I previously thought of using web page authorization to achieve this, but t...

LRTRL 2017-06-28 16:57:44 0  1  2151

WordPress PHP fatal error: Undefined function trailingslashit() called when trying to update plugin

We installed WordPress on provider wpengine. We encountered a fatal PHP error in our theme when we tried to update some plugins. Provider support doesn't know how to help us. Here is the call stack of the error: "PHP Fatal Error: Uncaught error: Call to undefined function Trailingslashit( in /n...

P粉216807924 2023-10-23 12:54:50 0  1  1046

Ask: Why can't the ajax submitted data be transmitted to the controller?

When I was studying the "Latest ThinkPHP 5.1 World Premiere Video Tutorial (60 Days to Become a PHP Master Online ** Class)" by teacher Peter.zhu, in the section "10-3 Preliminary Implementation of User Registration Function", why Why can't my ajax submission data be passed to th...

清晨的粥 2019-09-18 14:26:09 0  3  1365