Please advise on PHP class library loading rules

I have a question to ask. . My project loads classes purely through a custom namespace. Then I will introduce a third-party class library. This class library is loaded according to the PSR-4 specification. In this case. Without changing my original loading rules, how can I reference this section in ...

过去多啦不再A梦 2017-05-27 17:43:28 0  3  594

javascript - js plugin reads local files

I want to write a jq plug-in that allows the user to select a local file and then read the file. How can I select the file and then read it directly or get the absolute path? Both are acceptable. However, after searching for a long time, I found that the absolute path problem is difficult to obtain ...

PHP中文网 2017-06-12 09:33:01 0  4  1169

TypeError: Cannot read property of null (read 'length'). What does it mean?

I have a problem that I'm trying to solve. Cannot read property of null (read 'conversion'). What does it mean? . I checked the options for integrating mychart.update() from this issue https://github.com/chartjs/Chart.js/issues/5149. But when I try to start I get other errors. TypeError:Cannotreadpr...

P粉031492081 2023-11-04 11:52:35 0  2  756

PHP reads Mysql database data and echoes html problem

I use php programming to read database data, and the field is a string with spaces. After reading successfully, assign the value to The value of the text text box. The result is displayed, and the characters after the spaces are ignored by the browser. please help. For example, there is a field call...

城乡结合部部长 2020-02-19 12:27:19 0  1  1279

fread($fp, 1024); What does the read length mean?

What does read length mean?

网站建设谢坚 2018-09-18 23:11:59 0  2  1539

mysql - Why does database read-write separation improve database performance?

Please see the blog above for why read-write separation can improve database performance. According to database common sense, read-write separation can indeed improve database performance, but you don't know if you understand its underlying principles. For example, one reads and one writes, but the ...

PHPz 2017-05-24 11:34:46 0  2  1300

Is there a way in php to read the content of the uploaded Word document and output it on the web page?

Question: Is there a way in PHP to read the content of the uploaded Word document and output it on the web page? Is there anyone who knows it? Thank you.

仁、 2019-09-20 19:48:32 0  1  1018

Master-slave replication - redis master-slave, the java client uses jedis to connect to the master, will the read request be routed to the slave?

Redis master-slave achieves a read-write separation effect similar to MySQL. Is it necessary to execute slave host at the code level? Currently, the Sentinel cluster is connected through the jedis client JedisSentinelPool. When viewing the log output, it should be connected to the master. Will the h...

仅有的幸福 2017-05-16 13:20:21 0  1  1145

python - openpyxl reads xlsx files and generates data into a dictionary. Is there a problem with Chinese encoding?

The following code implements reading the data in 1.XLSX, saving all the data in the dictionary my_data, and then saving the dictionary to the file census2010.py for later use. Problem: The run can be successful. But in the output file, all the Chinese content is u'u5f20u5b...

我想大声告诉你 2017-06-12 09:25:15 0  2  1220

file - php about file operations - read one line, process one line and then delete the line

1. Now there is a 300M file. The data in it needs to be read line by line and processed for each line (it cannot be made idempotent). But I am afraid that the system will hang up during the processing, and I don’t know which row to read again. I am afraid that the rows that have been processed befor...

PHP中文网 2017-06-26 10:49:01 0  3  911

javascript - Please enlighten me: NetEase Mailbox Web side simulates login to read the encryption parameters _ntes_nnid, _ntes_nuid

The simulated login and mail receiving of NetEase mailbox are very simple. When reading the mail, two parameters are required: _ntes_nnid and _ntes_nuid {code...} 32-bit, looks like MD5 encryption. Please give me some advice from all the great masters! Here is the code to read the email: Get address...

天蓬老师 2017-05-16 13:44:51 0  1  1930

Problem with reading central control attendance machine data using PHP

This is a demo found on the Internet. The device connection and communication are normal. I have also tried to write data, but I cannot get the read data. After $SerialNumber is passed in, there is no change. This is the SDK definition after running.

niko 2021-09-02 12:18:06 0  3  1341

Python reads the content of a document and extracts it for processing

There is a text document 1, the data is divided into lines, as follows: 1234532561968541236852697... Another text document 2, also has the same format of data, as follows: 112233123456789652123698125896... I want to read each line of document 1 , extract each row of data into a variable...

仅有的幸福 2017-05-18 10:55:56 0  2  661

Will Linux report an error when using mv to move files that are being read and written?

1) What will happen if you use the mv command to remove the file being read in the Linux system? For example, file 1.txt is being read by process A. If I use the mv command to move 1.txt to another directory, will process A make an error? 2) What will happen if mv removes the file being written? For...

世界只因有你 2017-05-18 10:51:33 0  2  1856

Algorithm - python ahocorasick reads text from a local file and performs keyword matching, but the matching fails

Use Python+pyahocorasick to match keywords, which are probably between 10-20 Chinese characters. The text used to construct ahocorasick is read from the local file key_word. The format is as follows: Mother and baby area<Complementary food<Noodles/noodles: infants, toddlers, babies, ch...

迷茫 2017-05-18 10:47:50 0  1  1088

javascript - Cross-domain reading website interface to obtain data is blocked

Today, I want to use the proxy mode of webpack to read the data interface of a website to obtain online data. The result returns 200, which is considered successful. After opening the data, the code returned 500, which was directly determined by the server to be a malicious access. I would like to a...

伊谢尔伦 2017-06-26 10:52:09 0  3  967

TypeError in Vue 3's render function: Cannot read property of undefined (read 'iconType')

I'm migrating my vue application from vue2 to vue3. I get this error when removing (function:true) option from function component. In my vue2 application I use render functions by passing props, data and listeners as parameters. Now, I have read the official documentation but can't understand how to...

P粉585541766 2024-02-26 12:10:31 0  1  389

How does MySQL PHP read data cyclically from the database in batches?

If five items are read from the database each time, how should the program continue to loop until all loops are completed? Is the logic of adding {code...} correct?

迷茫 2017-07-01 09:11:51 0  2  767

node.js - How does electron get the elements in webview, which is the loaded website?

When loading an online website, how do I get the elements in the webview? I can't get it. I hope someone can give me some advice! I'm a newbie and I still don't understand much.

大家讲道理 2017-05-16 13:42:29 0  1  1125

The title can be rewritten as: In a server-side application (like PHP, Ruby, Python, etc.), is it possible to read the hashed part of a URL?

Assume that the URL is: www.example.com/?val=1#part2PHP can use the GET array to read the request variable val1. Is the hash value part2 also readable? Or can it only be handled by the browser and JavaScript?

P粉145543872 2023-08-20 20:10:37 0  2  466