What are arrays and two-dimensional arrays in php?

What are arrays and two-dimensional arrays in php? I understand now that an eheo is so sad! I thought I still couldn’t tell the difference between arrays and two-digit arrays! I beg the teacher to give me some pointers. Thank you.

Administrator(长风大侠) 2020-05-29 15:13:00 0  2  1198

How to sort arrays and data in PHP?

This question is intended as a reference regarding array sorting issues in PHP. It's easy to think that your particular case is unique and deserves a new question, but most are actually just minor variations on one of the solutions on this page. If your question was closed as a duplicate of this one...

P粉068174996 2023-10-17 15:33:51 0  2  675

If PHP uses multi-dimensional arrays, will the efficiency be very low?

When using PHP to do projects, you need to use a data structure to store data, but in PHP, it seems that it can only be stored using arrays. The configuration files of PHP's Laravel and other frameworks all use multi-dimensional arrays, such as: {code...} I think the efficiency of multi-dimensional ...

PHP中文网 2017-06-15 09:22:11 0  7  878

PHP calculates the maximum and minimum values ​​​​of an array Dashenjin

How to calculate the maximum value and minimum value of such an array? It can be seen at a glance that the minimum value is 0 and the maximum value is 459. But how to calculate it using PHP?

怪我咯 2017-05-18 10:46:03 0  6  840

PHP arrays obtained from URL parameters do not behave as expected

I have a URL parameter that contains the category ID and I want to treat it as an array like this: http://example.com?cat[]=3,9,13 In PHP I use Getting the array: $catIDs=$_GET['cat']; When I do echogettype($catIDs); it shows that it is actually treated as an array, but when I do print_r($catIDs); I...

P粉785905797 2024-04-06 22:09:02 0  1  1811

Laravel - Create arrays and arrays of objects in PHP

I'm trying to create an array of objects in laravelphp. So far I have achieved this. When I return the array I get the response, I added the image for clarity. I get this output and I want to create a response like this...[{"student":"JaimeThomas","subjects":[{"sub...

P粉298305266 2024-03-30 17:17:36 0  1  475

java - PHP calls the map type of webservice, how to encapsulate it?

Now that the PHP side calls the Java side's webservice, the map type for Java will not be encapsulated. There are two known formats: For Java arrays, we use PHP arrays to correspond. For java objects, we use stdclass to correspond. So for the map type of Java, how to block it on the PHP side...

PHP中文网 2017-06-05 11:10:20 0  2  916

Scope of php array?

The original poster did too much searching. It may be that the description of the keywords is incorrect and no corresponding explanation was found. I will post a picture first: that's about it. Why can print_r output, but there is no output in echo? A good person will have a safe life. Maybe I am no...

adolphe_ss 2017-11-16 21:10:12 1  3  1460

php - combination of two arrays

{code...} {code...} I want to combine it into an array as follows: $data =Array( {code...} ) Please help me

扔个三星炸死你 2017-06-29 10:08:34 0  5  943

PHP: Compare arrays of arrays and create new array when values ​​match

Here is a sample data set $all_items=array($a1=array(name=>"item1",description=>"item1",item_key=>123),$a2=array(name=>"item2",description= >"item2",item_key=>

P粉323224129 2023-09-19 19:48:02 0  1  572

php array rotation

Of these two integer arrays, how do I determine if the second array is a rotated version of the first array and which php function is required? Example: Original array A=[1,2,3,4,5,6,7,8] Rotated array B=[6,7,8,1,2,3,4,5] In this example, the array All numbers of A are rotated 5 places to the right.

P粉043295337 2023-09-03 14:08:19 0  1  583

PHP array two-dimensional array conversion

{code...}

过去多啦不再A梦 2017-07-04 13:46:19 0  3  866

Loop through each value in the array and then use a switch statement on those values.

I'm new to PHP and I was wondering if anyone could help me. I have an array, the values ​​in the array are determined by another function, but the value of the array is always "warning", "critical" or "ok", the length of the array can also be arbitrary. For example: $ho...

P粉513316221 2023-07-30 12:21:44 0  1  713

Merge arrays created using Google Drive NextPageToken into one array

I have the following code for downloading files from GoogleDrive, the number of files is determined by nextPageToken as shown below. The code will continue adding arrays to the $files array until nextPageToken is null. At this point I have an unknown number of sub-arrays that I would like to merge i...

P粉872101673 2023-08-13 20:28:17 0  1  578