Course Intermediate  11212

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Course Advanced  17556

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Advanced  11268

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

Course Introduction：In PHP, we often need to deal with arrays, and the length (or number of elements) of an array is a very basic concept. So, how do we get the length of an array in PHP? The answer is that PHP provides multiple methods to get the array length. This article will introduce four of the more commonly used methods, namely: 1. Use the count() function 2. Use the sizeof() function 3. Use the foreach loop 4. Use the array_keys() function Next, we will follow

2023-05-06 comment 0  607

Course Introduction：In C language, the length of an array cannot be obtained directly, but there are the following methods to obtain it indirectly: use the sizeof operator to divide the size of a single element; use the #define preprocessor macro to define the array length; use pointer arithmetic to calculate the array length; use Dynamic array library functions (such as array_size()).

2024-05-08 comment 0  1445

Course Introduction：PHP is a server-side scripting language that is widely used in web development. PHP's array is a very powerful and flexible data type that can be easily sorted, filtered, queried, and manipulated. In practical applications, we often need to obtain the length information of a PHP array in order to determine the number of elements in the array. This article will introduce how to use PHP to query the length of an array. A common way to get the length of an array in PHP is to use the count() function. The count() function is used to return the number of elements in an array. The following is using count

2023-05-23 comment 0  486

Course Introduction：Method: 1. Use "for($i=0;$i<count($arr);$i++){echo $arr[$i];}" to get the array length; 2. Use "$count = count($ arr)" to get the array length; 3. Use "{$arr|count}" to get the array length.

2022-04-06 comment 0  2946

Course Introduction：There are two ways to get the length of an array in C language: use sizeof() operator: length = sizeof(arr) / sizeof(arr[0]); use macro: #define ARRAY_LENGTH(arr) (sizeof(arr) / sizeof(arr [0]));

2024-05-08 comment 0  1105