Course Elementary  20442

Course Introduction：PHP array functions allow you to access and manipulate arrays, supporting single-dimensional and multi-dimensional arrays. Array functions are a core part of PHP. No installation is required to use these functions. "PHP Function: Array Array Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP array functions, and provides examples of functions through the PHP editor to help PHP learners better understand and use array functions.

Course Elementary  14112

Course Introduction：PHP string functions belong to the core part of PHP. No installation is required to use these functions. "PHP Function String String Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP string functions, and runs examples of various string functions in the browser through the PHP editor to help PHP learners learn more Good to learn and use string functions.

Course Elementary  2161

Course Introduction：Delphi6 function encyclopedia

Course Intermediate  5720

Course Introduction：The three most important core technologies in JavaScript are: functions, objects and closures. It can be seen that functions always occupy the core position and are first-class citizens in JavaScript. It can be said that everything in JavaScript comes from functions. .

Course Elementary  23692

Course Introduction：Functions of smarty template engine

Course Introduction：Usage of fork function in Linux In the Linux operating system, the fork() function is a very important system call function, used to create a new process. It is widely used in Unix and Unix-like operating systems. In this article, we will introduce the usage of the fork function in detail and provide some specific code examples. 1. Overview of the fork function The prototype of the fork function is as follows: #include#include

2024-02-23 comment 0  563

Course Introduction：Overview of the role of the fork function in Linux and code examples: In the Linux system, the fork function is a very important system call, and its main function is to create a new process. Function: Create a process: After calling the fork function, the operating system will create a new process, called a child process. The execution code of the child process is exactly the same as the parent process. The child process starts execution from the return point of the fork function. Copy the context of the parent process: The child process will copy many attributes of the parent process, including code segments, data segments, and stacks

2024-02-19 comment 0  1318

Course Introduction：Analysis of the reasons for the failure of the PHPPCNTL extension fork function In PHP, the PCNTL extension provides a series of functions for handling process control, of which the fork function is one of the commonly used functions. Through the fork function, we can create a child process to perform a certain task, which is very useful when writing concurrent handlers. However, when using the PCNTL extended fork function, sometimes you will encounter fork failure. This article will analyze the reasons for this situation and give specific codes.

2024-02-28 comment 0  523

Course Introduction："fork()" in Linux is a system call function used to create a new process. It will create a copy of the current process, called a child process. The child process is almost identical to the parent process, including code, data and open files. File descriptors, etc., whose prototype is "pid_t fork(void);".

2024-01-25 comment 0  1173

Course Introduction：The Fork() function is one of the most commonly used system calls in Linux systems. It is used to create a new process, which is a child process of the calling process. The characteristic of the fork() function is that it is only called once but returns twice, respectively in the parent process and the child process. The return value of the fork() function is different and can be used to distinguish the parent process and the child process. In this article, we will introduce the principles and usage of the fork() function, including the meaning of the return value, the characteristics of the child process, the synchronization and communication of the parent-child process, etc., and give examples of their usage and precautions. 1. Introduction to fork A process includes code, data and resources allocated to the process. The fork() function creates a process that is almost identical to the original process through a system call.

2024-02-10 comment 0  1235