create array of people s first names

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.

The process of learning PHP, sorting out some of the commonly used functions, which are array functions. Array (): Generate an array$a = Array ("Dog", "cat", "horse");Print_r ($a); Array ([0] = dog [1] = cat [2] = = horse)Array_combine ():

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

Two-dimensional array, multidimensional array, string array; Two-dimensional arrays: The concept of a two-dimensional array: An array of two subscripts following an array name is called a two-dimensional array Definition: Type descriptor array name [

This article is my own study summary, for beginners reference use. The great god please ignore .... Knowledge summary from JS Advanced Programming ^ _ ^First, each entry of the array type in JS can hold any type of data. And the size of the array

What is an array?When using PHP for development, you need to create many similar variables either early or late.Without many similar variables, you can store data as elements in an array.All elements in the array have their own IDs, so they can be

#pragma Mark----------A two-dimensional array----------int main (int argc, const char * argv[]) {/*1. The essence of a two-dimensional array: An array of array elements, called Arrays of array2. Classes such as: Managing the age of 4 students in a

Add, delete, query, and sort php arrays. For more information, see. Detailed descriptions of data addition, deletion, query, and sorting Add an array (add the first and last Data Records (not Limited) and add data anywhere in the middle ). 2 ~

Analysis of obtaining method parameter names in JAVA (1). Obtaining method parameters in java Questions First, let's explain the question. We know that through reflection, Java can know from a class what it hasMethod, WhichVariableYou can also know