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
arrays, which can be said to be a more important way of using PHP data. PHP's Array function is numerous, below is my study summary, takes this to remember, facilitates later to learn.
1. Array definition
The definition of an array is defined using
Class Testx {public static void Main (string[] args) {/* int []arr={1,2,3};int []arr1=new int [2]; /This is an array definition of two methods, static can be assigned value, dynamic cannot be defined when the assignment,/int[][]a={{1,2},{2,3,}};int [
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 ($arr), and the values in the array are exchanged with the key
PHP's Array function is numerous, below is my study summary, takes this to remember, facilitates later ...
one, array definition:The definition of an array is defined using the array () method, and an empty array can be defined:
. Foreach Traversal:
Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if
Lesson 1
Subject:Array definition and reference
Purpose:Understanding the definition and reference methods of Arrays
Teaching focus:Array initialization and array element reference methods
Teaching difficulties:Initialization, reference
Course
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.
PHP array operation summary php array usage tips. Array is an important method in PHP Data applications. PHP has a large number of array functions. The following is a summary of my learning. I will take this note to facilitate future authentication.
In C Language
Yes: A [5] = {1, 2, 3, 4, 5 };
In Delphi, how should I write the value assignment of this array ??Question added: I want to assign an initial value when declaring an array. You do not need to know the content of the initial value, all
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