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android - PHP gets the real IP of the mobile phone

If the mobile phone is connected to wifi, then my background PHP can only obtain the LAN IP assigned to the mobile phone by the router. How can I obtain the real IP address of the client?

淡淡烟草味 2017-05-24 11:30:36

Firestore method to get random documents in collection

It is crucial for my application to be able to randomly select multiple documents from a collection in Firebase. Since there is no built-in native function in Firebase (that I know of) to implement a query that does this, my first thought was to use a query cursor to pick a random starting and endin...

P粉277305212 2023-10-19 11:39:22

python - How to get random data every time django calls a tag

The code for views is like this kwargs["random paragraph"] = Content.objects.order_by("?")[0].content is to randomly extract a paragraph each time and then the index is like this {code...} My purpose Every time it is called, random paragraph 1, random paragraph 2, random paragrap...

大家讲道理 2017-05-18 10:52:56

javascript - js crosses two-dimensional arrays to get random numbers. How to achieve average random numbers?

There is a two-dimensional array, how to get 2 or 3 random numbers from a cross (not adjacent to the top, bottom, left, and right)? Array: {code...} I wrote one like this, but it feels very rigid, the numbers obtained are not even, and the code is a bit bloated. Does anyone have a better solution? {...

PHP中文网 2017-07-05 11:07:26

How to get the host IP in a docker container and connect to a service on the host

How to obtain the host IP in a docker container. For example, the nginx container may use the host's ruby service.

世界只因有你 2017-05-16 13:17:24

How to get the current computer login user in php?

Help: I am building a portal system that requires automatic login with a computer login user name. How to obtain the computer login name? Under the guidance of which master?

手机用户035809226 2019-03-19 17:35:15

javascript - One array taking random elements from another array

There is an array a=[4,19,23,44,56,1], create a new array b, and b randomly selects one element at a time from a until it is exhausted. Implemented in JavaScript

PHP中文网 2017-05-19 10:31:39

javascript - How to get a random number in a symmetric range in JS?

For example, I want to use Math.random() to get random numbers in the ranges of -20~-10 and 10~20. Is there any most streamlined solution? For example, can it be done without an if statement? Thank you all for clearing up the confusion.

淡淡烟草味 2017-07-05 10:44:41

javascript - How to get the mobile phone device ID (or other unique identifier) through the web page?

Can the mobile web page obtain the unique identifier of the mobile phone?

大家讲道理 2017-07-06 10:37:07

How to get the paths of all .exe files on this machine in C C++

In C C++, how to scan .exe files in all disks of this machine and obtain their paths? What idea?

为情所困 2017-06-07 09:24:04

Get a random color

$(document).ready(function(){ changecolor('a') $('a').mouseover(function(){ $bg=$(this).css('backgroundColor') $(this).css('box-shadow','0

Jia 2018-11-29 16:11:53

php data acquisition?

php data acquisition? php data acquisition? php data acquisition?

Mr.V 2017-07-27 21:56:28

Get the current user in MySQL Get the current user's MySQL username, no hostname required

I know that we can use user() and current_user() functions to get the currently logged in user. But I only need users without hostname suffix. I can't seem to find any reference to the built-in MySQL function that just provides a username.

P粉340264283 2024-03-27 08:31:44

javascript - Is there any way to get the pictures in the video

After uploading the video, I can get a random frame as the cover. Is there any way to do this?

伊谢尔伦 2017-06-14 10:54:30

javascript - How to implement random jumps to multiple domain names?

1. How to implement random jumps to multiple domain names? Can the same link point to a random domain name? 2. For example, link a jumps to link b this time. Next time, it may be link c. The jump link is random. How to implement this in the code?

迷茫 2017-06-12 09:20:52

javascript - How to generate a set of non-repeating six-digit random numbers

It is required to generate an array containing six random numbers, and these random numbers cannot be repeated. (The array contains multiple random numbers, each random number is six digits, and the random numbers in the array are not repeated) You can refer to the following two codes to combine the...

过去多啦不再A梦 2017-05-19 10:39:10

php - [WeChat] Get the material list interface, get all when getting the picture and text list? ?

WeChat’s interface for obtaining a permanent material list, the parameters are written as follows: The document states: The number of returned materials is between 1-20. I get the picture material list, no problem, I can control the returned quantity through the count parameter. But when getting the...

过去多啦不再A梦 2017-05-24 11:34:22

javascript - When using html input file on an Android phone, the file type and file name cannot be obtained

On some Android phones, the file information cannot be obtained by input file. What's going on? Decode the name as follows: There are experts abroad who read the file stream to obtain it. Is this the only way? http://stackoverflow.com/ques…

迷茫 2017-05-19 10:27:23

How can I modify the code to display only 20 random items on refresh, excluding any ordered items?

I asked a question here about how to get 20 random items from that JSON and I used one of the answers like this: consta=Myjson;useEffect(()=>{for(leti=a.length;i-- >0;){constj=Math.floor(Math.random()*i);//0≤j≤i[a[i],a[j]]=[a[j],a[i]] ;}},[]);{a.slice(0,20).map((ite

P粉252116587 2024-03-22 13:19:54

javascript - node get ip address

How does node get the visitor's ip address. . req.connection.remoteAddress gets 127.0.0.1

过去多啦不再A梦 2017-05-18 10:56:31