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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(長風大俠) 2020-05-29 15:13:00 0  2  1329

Merge associative arrays with shared column values

I want to merge two arrays based on common column values. Here are my 2 arrays: $array1=[["total_process_per_category"=>"6","category_id"=>"1"],["total_process_per_category"=>"2","ca

P粉966979765 2023-11-09 08:47:41 0  2  747

Merge two arrays in the same row JQUERY

I have a problem that I can't merge two arrays in the same row, I have two arrays now and then I want to merge them because they have the same length Here are my two arrays and it looks like what I want by combining output like this, but this is what I tried constar1=$('input[class=namecheckbox]').m...

P粉610028841 2024-04-03 14:41:39 0  1  640

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中文網(wǎng) 2017-06-15 09:22:11 0  7  1006

Can PHPUnit use assert equals to strictly compare two arrays containing objects?

I have two arrays of objects. I want to test if these two arrays are equal, but using a strict comparison such as 'false'!==0. Is it possible to achieve this in phpunit without requiring custom comparators or other methods?

P粉162773626 2024-04-05 13:35:37 0  1  1917

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  741

javascript - How to elegantly alternate iterate over two arrays?

Restricted language: Javascript For example, several activity pits will be inserted into a product list. For example, there are currently two arrays A and B with variable lengths. It requires 6 A array elements + 1 B array element to be arranged like this. For example, even more arrays are arranged ...

phpcn_u1582 2017-05-19 10:41:15 0  2  784

php - The most convenient or best way to convert objects to arrays

What is the convenient way to convert objects to arrays? Original data {code...} Target result {code...}

怪我咯 2017-06-05 11:08:09 0  2  628

How to merge two arrays

I'm trying to merge two similar arrays Array with same keys([0]=>4064628[1]=>4064953[2]=>4064922[3]=>4064870[4]=>4064789[5]=>4064631 [6]=>4065044[7]=>4064942[8]=>4064938[9]=>4064936)Array([0]=>165020[1]=

P粉548512637 2023-08-31 09:47:28 0  2  630

Can PDO result sets output mysqli_result objects instead of regular two-dimensional associative arrays?

Can PDO result set output mysqli_result objects instead of regular two-dimensional associative arrays?

P粉928989981 2022-07-20 16:10:19 0  0  714

javascript - How to compare elements in two three-dimensional arrays one by one in js

How to compare elements in two three-dimensional arrays one by one in js

怪我咯 2017-05-19 10:19:01 0  1  585

Merge/flatten an array of arrays

I have a JavaScript array, for example: [["$6"],["$12"],["$25"],["$25"],["$18"],["$22"],["$10"] ] How can I merge the separate inner arrays into one array like this: ["$6","$12",

P粉828463673 2023-08-27 12:05:43 0  2  727

How to filter nested arrays in React?

I have an array of arrays in my React app that I need to filter based on the first column. The first column contains the list of companies. constrowData=[['CapriLLC','0012345','A0012','Y','ViewDetails'],['CapricornINC','0022345','B0012','N','ViewDetails'],['CancerINC ','0033345','A0012','Y','Vi

P粉022501495 2023-08-15 14:31:04 0  1  621

How to conditionally merge two arrays into a two-dimensional array?

I encountered a small problem. The two arrays can be merged so that they can be quickly written into the database, but no matter how they are merged, it is not ideal. I would like to ask. Arrays 1 and 2 are composed of the same key, and the keys are changed to array1 and raary2. Can you please help,...

P粉925529649 2023-02-26 10:20:56 0  1  653

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  795

php - zend studio does not display warning messages for undefined variables in arrays?

The new version of zend studio (13.6.0) does not display warning messages for undefined variables in arrays. Isn't this the normal situation? Is there something wrong with the configuration somewhere?

學習ing 2017-06-19 09:07:03 0  1  1179

How to merge arrays and keep keys?

I have two arrays: $array1=array('a'=>1,'b'=>2,'c'=>3);$array2=array('d'=>4,'e'=> 5,'f'=>6,'a'=>'newvalue','123'=>456); I want to merge them and preserve the keys and order instead of re-indexing! ! How did it become like this? Array([a]=>newvalue[b]=>2[c]=>3[

P粉081360775 2023-10-17 11:01:01 0  2  713

Generate 2 tables based on 2 separate javascript arrays

I'm trying to build 2 html tables from 2 different JavaScript data arrays. The first table is built fine and the structure looks great, but the second table is not populated with data. I tried adjusting the naming but I think because it's looking for "tbody" both times. Is there another va...

P粉237647645 2024-02-26 21:12:10 0  2  564

PHP: Handling (unexpected) arrays in user input

I've recently discovered that sending variables containing "unexpected" arrays (instead of strings) can lead to fatal errors or other undesirable behavior. Example: We have the following array: $list=array("a"=>"first","b"=>"second"); The user ...

P粉547362845 2024-04-01 17:56:37 0  1  705

How to access and handle nested objects, arrays, or JSON?

I have a nested data structure containing objects and arrays. How to extract information, i.e. access specific or multiple values ??(or keys)? For example: vardata={code:42,items:[{id:1,name:'foo'},{id:2,name:'bar'}]}; How to access the name of the second item in items?

P粉864872812 2023-10-09 19:02:22 0  2  899