Will calling a static method directly using the class name in PHP trigger the constructor of the class or parent class?

As the title says, PHP calls static methods directly using the class name. Two questions: 1. Will the constructor of the current class be called? 2 Will the constructor of the parent class of the current class be called?

淡淡烟草味 2017-07-07 10:34:10 0  3  1443

Is there any PHP project similar to lodash.js that encapsulates some commonly used methods?

Is there any PHP project similar to lodash.js that encapsulates some commonly used methods?

怪我咯 2017-05-19 10:08:14 0  1  473

php - laravel5.4 prints Auth::check(); in the constructor of the class and returns false, and prints it in the method of the class and returns true

Please help! laravel5.4 prints Auth::check(); in the constructor of the class; it returns false, and prints it in the method of the class and returns true. Make sure you are logged in. As shown in the figure: it returns false.

怪我咯 2017-05-16 12:58:35 0  2  1121

class - How does PHP implement that all subclass attributes have toArray() method?

How to implement in PHP that all properties of subclasses have toArray() method? After the call, it becomes an array. How to design the parent class? ?

阿神 2017-05-16 12:59:22 0  3  571

php - External network pages display a large number of internal network images. Which method is most efficient?

The server is an intranet, maps an external network address, and has a web program that displays pictures of other servers on the intranet. The current approach is to use PHP's file_get_contents method to download the image, and then use nginx to proxy the external IP address to the PHP program, so ...

过去多啦不再A梦 2017-05-17 09:55:19 0  3  591

javascript - What is the principle of canvas compressing images?

The toDataURL method in canvas can specify the format and compression quality of the image after compression, such as compressing it into webp format: {code...} toDataURL uses base64 to encode the image, and the encoded source file is 33% larger than before encoding. , reference address, but the qua...

给我你的怀抱 2017-06-26 10:55:55 0  2  1132

php - Javascript compress images

Use input to select multiple pictures on the page, compress them first, and then save them to the input of the selected picture. Then they and other text information are submitted to the backend through the form method. The backend receives it through the php code. How should this be implemented? I ...

某草草 2017-05-27 17:42:40 0  3  584

javascript - How to implement the drag-and-drop function of jquery ui to stop drag-and-drop when certain conditions are met

As shown in the picture, I can drag the small dot in the lower right corner to zoom the image. Since the zoom function of jquery ui cannot be satisfied, I wrote this myself. Now I need to drag the small dot in the lower right corner to the position in Figure 2. , you can no longer continue dragging ...

某草草 2017-05-19 10:42:24 0  1  477

Making buttons that adapt to screen size - detailed explanation of how to use background images

I'm developing a pfsensecaptiveportal that requires multiple graphics to be displayed side by side and adaptable to the device screen size. This can be achieved nicely using the image input type. However, the pfsense device does not recognize this commit correctly. It requires a commit type with a v...

P粉345302753 2023-08-16 13:38:12 0  1  634

objective-c - ios 给七牛上传图片，拍的照片2M左右，通过代码拿到的照片大小是5M多为什么呢？

给七牛上传图片，手机里面拍的图片就2M多，但是用这个方法 NSData *imgData = UIImageJPEGRepresentation(img, 1.0); NSLog(@"压缩Size of Image(bytes):%d",[imgData length]); 查看就5M多，怎么回事啊？而且七...

ringa_lee 2017-04-24 09:11:56 0  1  655

How do I get my image to appear on the page's main display?

What I want to do is receive some photos using NASAAPI. These photos are then displayed on my page's thumbnail and main display. I'm just trying to figure out why the code doesn't get the image from the thumbnail and display it on the page. I also use HTML5 and above version of the template website....

P粉338969567 2024-04-06 15:33:12 0  1  650

javascript - How to write this css

How to write css for this graphic in this classification category? My method is to add a relatively positioned pseudo-class to the border-bottom. Is there any good idea?

给我你的怀抱 2017-05-19 10:40:27 0  4  713

PHP class variable assignment problem

As shown in the picture, I want to know why class variables cannot be assigned to object method variables, but they can be assigned in constructors.

phpcn_u1582 2017-05-16 13:03:21 0  4  404

javascript - How to deal with the disconnection of PHP packaged images?

Now there is a need to package pictures into zip compressed packages. Click the 'Package' button to execute ajax. I am using the ZipArchive class that comes with PHP. The problem now is that if there are 10 pictures, when I am halfway through packaging, the computer shuts down. The Internet is offli...

巴扎黑 2017-06-21 10:11:10 0  1  726

php - How to make website carousel images load quickly

Enter the homepage. There are 6 carousel pictures on the homepage. They are loaded from the address read from the database. It takes a long time to load when opening. Is there any way to eliminate lazy loading? The pictures have been compressed.

给我你的怀抱 2017-05-16 12:59:36 0  4  655

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  1282

javascript - Page jump in vue-router

I want to jump directly to another route, such as http://localhost:8080/login and transfer to the http://localhost:8080/admin page. I want to perform page jump in methods, which is similar to js's window.location code. Screenshot: Console screenshot: push method and go method cannot be found

迷茫 2017-05-18 11:03:02 0  2  721

PHP remove orientation exif from image only (without using imagick)

I wrote a script that batch resizes uploaded images locally and creates thumbnails. The problem is if some images are oriented vertically but after resizing they rotate horizontally. This is due to the exif orientation of the image. Is there an easy way to remove orientation exif from an image via P...

P粉141925181 2024-03-27 09:27:01 0  1  466

javascript - The effect of a lottery (as shown in the picture)?

An effect of randomly rotating each avatar picture. Does anyone have a similar demo or provide a method? Thank you for your help.

阿神 2017-06-05 11:10:32 0  2  700

Problem: Images load too slowly

I made a craiglist-like website using Html, Css, Js, and Php. When the user clicks to upload an image larger than 1mb, the page becomes very slow or fails (503 error). There is no problem with images smaller than 100kb. There is a form on a php page with type=file input tag and preview img tag. >...

P粉676821490 2023-08-17 22:40:08 0  1  652