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javascript object problem

js objects, what knowledge is often used in actual development? Array? time? Regular expression? For example, do you need to use these for slideshows or other special effects?

PHPz 2017-05-18 10:52:15 0  4  686

Regular expression - PHP regular expression determines whether there are specified keywords in a and img tags

What I want to implement is the keyword replacement function. a, img contains keywords and cannot be replaced. If [Example] is a keyword, the keyword appears in these three situations and cannot be replaced, otherwise it will destroy the html structure {code...} I wrote a crappy function. It doesn't...

歐陽克 2017-06-21 10:10:32 0  1  1333

Python - The title of the web page contains a newline. How to extract it using regular expressions?

When using python as a web crawler for CSDN, when crawling the title of a web page, I always use the regular expression (?<=\<title\>).+?(?=\<) in CSDN No, I went to CSDN source code and took a look. The title was displayed in a new line, so the original regular expressio...

女神的閨蜜愛上我 2017-06-22 11:51:43 0  2  1096

c++ - A question about static_cast

The static_cast operator converts expression to type-id type, but there is no runtime type checking to ensure the safety of the conversion. ① Used for conversion of pointers or references between base classes (parent classes) and derived classes (subclasses) in the class hierarchy. Perform upcasting...

阿神 2017-06-05 11:11:51 0  1  958

Regular expression - nginx regular expression, how to match not ending with / and not ending with .xml .html .htm

Requirements A regular expression is required for use in nginx. If $uri does not end with / and does not end with .xml, .html, or .htm, it will be permanent to $uri/. {Code...} Tried my own writing method, but failed: {Code...} Question {Code...} Supplement I used...

過去多啦不再A夢 2017-05-16 17:25:48 0  2  1001

Regular Expression - How to get the content of an HTML element in PHP

At present, I implement it through regular rules copied from the Internet, but it cannot achieve the effect I want. My current plan is: {code...} But the final output content is {code...} What I want is to output February 20, 2017, which is the content of the reason, but I don’t know the regular rul...

為情所困 2017-05-16 13:06:41 0  3  597

Chengdu is recruiting a junior PHP development engineer

There is a preliminary screening, and the answer address is: http://mtw.so/6hG4pS Job description: 1. Responsible for the PHP development work of the project team. 2. Ability to independently complete the underlying development work of relevant sub-projects under the leadership of technical managers...

wyn 2021-08-03 12:10:44 0  2  1356

Convert strings such as *italic* to <i>italic</i>, but not if the newline character is within the asterisk limit

I have the following regular expression in my PHP code: //markersforitalicset*Text*if(substr_count($line,'*')>=2){$line=preg_replace('#\*{1}(.*?) \*{1}#','<i>$1</i>',$line);} works well. However, when $line holds <br>, e.g. *Thisismytext<br&g

P粉262073176 2024-03-29 21:43:59 0  1  494

How to replace a single backslash with regular in js

{Code...} In my code, the final output result is aa-a/b. The regular expression only replaces the double backslashes, but not the single backslashes. How can I modify it to replace it? The reason is because \ is used as an escape character. You can see "aa\a/b" in the chrome console and th...

大家講道理 2017-06-12 09:31:16 0  3  1097

Invalid operation causes constant expression to be invalid

I have the following code and when I define a variable in the constructor I get the error "PHP fatal error: constant expression contains an invalid operation". It works fine when used in Laravel framework. &lt;?phpnamespaceApp;classAmazon{protected$serviceURL=config('api.amazon.service...

P粉418854048 2023-08-22 20:09:10 0  2  665

How to use backslash in preg_repalce()?

I checked the manual, but I don't understand this sentence. I would like to ask for advice: If you want to use backslashes in replacement, you must use 4 ("\\\\", translator's annotation: Because this is first a PHP string, it has been escaped. Finally, there are two, and then after passin...

　 2018-01-29 16:03:43 0  2  1317

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  1204

What is the difference between PHP class declaration and instantiation?

I am a newbie. I found that many tool classes can be used by directly declaring them. For example, {code...} in laravel makes me confused. Does declaring a class variable instantiate the code? After searching on Baidu, no one asked about this issue in PHP language, only Java, and Java is like this.....

習(xí)慣沉默 2017-05-16 13:10:23 0  2  566

What is a pagoda panel and what does it do?

Simply put, Pagoda is a WEB server suite that integrates software tools commonly used in web services such as Apache, MySQL, PHP, and Nginx. It is a popular WEB server panel. To put it simply, it is to facilitate the operation and maintenance of your website. Before using the Pagoda panel, I built t...

七秒 2021-10-22 11:28:01 0  3  5905

After I graduated, I learned PHP in my spare time. I taught myself all the time. Now I am looking for a job in this field. I am looking for guidance from my seniors on the direction of study and knowledge commonly used at work.

After I graduated, I learned PHP in my spare time. I taught myself all the time. Now I am looking for a job in this field. I am looking for guidance from my seniors on the common knowledge points and solutions for work. I also feel confused. Personal journey https://learnku.com/laravel/t /37812

人工智能君 2019-12-10 00:16:21 1  1  1660

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  2936

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