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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?

淡淡煙草味 2017-07-07 10:34:10 0  3  1554

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

PHP Chinese website public welfare live class: "Revealing the whole process of Web projects from analysis to online", starting tonight!

A new large-scale free public welfare live class on the PHP Chinese website has started! For three consecutive nights, all P friends, please move your benches and get ready! Training objectives: reveal the complete process of a Web project from analysis and planning, environment construction, use of...

PHPz 2018-08-07 10:59:05 0  1  3128

Java's [EncryptUtill.java encryption class, what does it correspond to PHP? I found a few on the Internet, but after encryption, they can't match those of Java.

Java's [EncryptUtill.java encryption class, what does it correspond to PHP? I found a few on the Internet, but after encryption, they can’t match those of Java.

巴扎黑 2017-06-20 10:07:34 0  2  916

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

Questions about object references in Java

1. Do all references to class objects only store memory addresses? 2. Are all references to class objects of the same data type as the class object? String a = new String("b") Can a be regarded as a String type? 3. How are memory addresses stored in references? Where is it stored? Thanks

給我你的懷抱 2017-05-27 17:40:20 0  1  716

class shared variable problem

For example, I have a class that has a static global variable a; it can also be non-static and then there is 1.php to assign the value of a to the class variable a to 88888; there is also 2.php how to get the variable of class a; Three different files, class, 1.php, 2.php

脾氣超好 2019-09-03 23:33:27 0  1  1318

java - Should I package the tool class I made into a jar and reference it every time, or should I paste the code every time I use it?

When we first started writing programs in Java, we wrote several tool classes of our own based on our projects. It was relatively simple to package them into jars and use them every time. However, if there were any modifications, we had to open a separate project for the tool class; if we change the...

過(guò)去多啦不再A夢(mèng) 2017-06-23 09:13:16 0  4  898

20 sets of php Chinese website customized mouse pads, given away for a limited time!

To celebrate the 14th PHP training live class, the class will start soon! We are giving away 20 sets of php Chinese website customized programmer mouse pads, welcome to participate and receive them!

z老師 2020-11-19 11:02:51 0  1  1694

fetch_field_direct() error

Error code: Object of class stdClass could not be converted to string Source code: $feilddirect = $mysqli_result->fetch_field_direct(1);print_r('The current field is:'.$feilddirect);

?v?人人余耳總 2019-06-20 16:51:42 0  3  1571

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  1073

How to send json data to kafka using Java

I only see some news about Java producing STRING type on the Internet. According to Java's producer class, you can customize the type of message sent, such as producer.send(new KeyedMessage<String, HashMap<String, String>>(topic,message); ...

我想大聲告訴你 2017-05-17 10:05:08 0  1  1381

How to embed php in HTML attribute?

For example, I have a page that mixes php and html. The php part stores a variable: {code...} In HTML, I want to use this variable in the attribute of an element: {code...} For example, here I I want to make the value of the class of this div active, which is just stored in the $class variable in ph...

曾經(jīng)蠟筆沒(méi)有小新 2017-05-24 11:34:16 0  1  761

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  1000

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 0  1  844

Does PHP 8.1 break the functionality of the inner class SoapClient?

While making a library that uses PHP's SoapClient and is PHP8.1 compatible, I ran into this problem: All properties of SoapClient are now private when they were public before. So things like getting the last soap fault ($soapClient->__soap_fault) are no longer possible. But if something goes wron...

P粉615886660 2023-12-12 22:52:40 0  1  697

For the view content in this chapter, I typed it according to the code in the video, and the created file was also typed according to the video, but why did a page error appear! Please try again later

Code content of index.php <?phpnamespace app\index\controller;use think\Controller;class Index{ public function index() { return 'php'; &nbsp

冷酸靈牙膏 2019-06-26 01:07:34 0  3  1434

What is the significance of php class properties and methods being private?

I see that many attributes are written as private or protected. What is the purpose of this? I read online that it said something about preventing others from modifying it at will, but I didn’t understand who the other person was referring to? Are they colleagues in the company? So if you develop th...

按鍵盤(pán)手指磨破皮 2017-09-04 19:32:21 0  2  1666

Why can PHP directly call non-static methods of a class through ::?

The code is as follows: {code...} php7.0 execution output: {code...} php5.6 execution output {code...} Is there such an operation?? What is the principle??

滿(mǎn)天的星座 2017-06-10 09:47:28 0  7  651

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  1206