how to create multidimensional array in php

1. Initialization of arrays(1) Create an array with arrayA: $products = array (' tires ', ' oil ', ' Spark plugs ');Array () is actually a language structure, not a function B: Initializing the related array$prices = Array (' Tires ' =>100, ' oil ' =

A simple implementation method of PHP multidimensional array to one-dimensional array, This paper introduces a simple implementation method of PHP multidimensional array to one-dimensional array. Share to everyone for your reference, as

Numeric arrayThe numeric array stores each element with a numeric ID key. You can use different methods to create an array of values: Example 1In this example, the ID key is assigned automatically: The code is as follows Copy Code

For Web programming, the most important thing is to access and read and write data. There may be many ways to store them, such as strings, arrays, files, and so on. arrays, which can be said to be a more important way of using PHP data. PHP's Array

1. The concept of arrays An array is a named range that is used to store a series of variable values. Each array element has an associated index (also a keyword) that can be used to access elements. PHP allows you to use numbers or strings evenly

For example, I have a multidimensional array $relationshop_list, which has IDs, with sort two columns, and I want the array to be sorted in descending order of ID, sorted in sort of way:Sort$array _field = Array_column ($relationshop _list, ' sort ')

basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key

I think so: Iterate through multidimensional arrays and create a one-dimensional array by indexing all the keys; Each time through the key name to check the parent array and data OK, the code is as follows Indexkey Creating an indexed array function:

PHP has a lot of functions about arrays to facilitate array manipulation. Defined: Each entity of an array contains two items: key and value, which can be retrieved by a query key. These keys can be numeric (numerical) or associated (associative)

Learn PHP's array summary "experience", PHP array Summary PHP has a lot of functions for arrays, which makes it easy to manipulate arrays. Defined: The array contains two items per entity: Key and value, which can be obtained by querying the key.