PHP程序员学C语言?
学完了C语言发现他啥都干不了呢?大家觉得学C对PHP有啥帮助吗,或者说可以做哪些比较牛或者有趣的事情
回复内容:
学完了C语言发现他啥都干不了呢?大家觉得学C对PHP有啥帮助吗,或者说可以做哪些比较牛或者有趣的事情
首先,c语言并不是啥也干不了,只是你的应用场合不对,其次对于php来说,c语言可以写它的拓展
可以看看这个,用C/C++拓展你的PHP
既然是写惯了PHP的人,初碰C语言,大概应该先玩玩CGI吧。CGI要玩其实很简单,把下面这个编译出来的可执行文件改名作test.cgi
放到配置好的Apache的bin-cgi目录下面,然后访问http://localhost/bin-cgi/test.cgi
就好:
<code>// cflags: -o /var/www/cgi-bin/test.cgi #include <stdio.h> #include <stdlib.h> #include <string.h> int main() { printf("Content-Type: text/plain\n\n"); char *qs = getenv("QUERY_STRING"); if(!qs) exit(-1); char* equ = strchr(qs, '='); if(equ) *(equ++) = '\0'; if(strcmp(qs, "name")) printf("Parameters incorrect."); else printf("Hello Mr./Mrs. %s", equ); return 0; }</string.h></stdlib.h></stdio.h></code>
光学c当然啥也干不了,最多写个控制台计算器之类的而已。
c要和系统api结合起来,才能干些事情,不过说到底,这些功劳都是系统api的,与c关系不大。
结论你说的很对,学完c啥也干不了
你可以写个数据库,当然这个要结合系统API
学完C之后就可以很好的理解PHP的底层,对一些原来只知道用的东西能更好的理解它的原理
哎 说C语言啥都干不了?反过来说才对 C语言不能干什么
大神约翰卡马克的游戏引擎都是纯C的
C语言 能干什么 不重要 学编程C能让你彻底理解内存~彻底学会从程序的角度思考问题~
这时才是最重要的
你应该问:怎样才能用c做事?
php就是c写的,你说呢?
请用合适的语言做合适的事情
c语言特别适合写操作系统等性能要求较高的地方
这些地方要求c语言运行时尽可能小 所以c语言只用标准库真的是什么也干不了
不过操作系统 导出的api都是c语言的借口
买本 unix网络高级编程第一卷 或者 unix环境高级编程 看看 会有很大的帮助的

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



C language data structure: The data representation of the tree and graph is a hierarchical data structure consisting of nodes. Each node contains a data element and a pointer to its child nodes. The binary tree is a special type of tree. Each node has at most two child nodes. The data represents structTreeNode{intdata;structTreeNode*left;structTreeNode*right;}; Operation creates a tree traversal tree (predecision, in-order, and later order) search tree insertion node deletes node graph is a collection of data structures, where elements are vertices, and they can be connected together through edges with right or unrighted data representing neighbors.

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

The truth about file operation problems: file opening failed: insufficient permissions, wrong paths, and file occupied. Data writing failed: the buffer is full, the file is not writable, and the disk space is insufficient. Other FAQs: slow file traversal, incorrect text file encoding, and binary file reading errors.

In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.

How to output a countdown in C? Answer: Use loop statements. Steps: 1. Define the variable n and store the countdown number to output; 2. Use the while loop to continuously print n until n is less than 1; 3. In the loop body, print out the value of n; 4. At the end of the loop, subtract n by 1 to output the next smaller reciprocal.

Algorithms are the set of instructions to solve problems, and their execution speed and memory usage vary. In programming, many algorithms are based on data search and sorting. This article will introduce several data retrieval and sorting algorithms. Linear search assumes that there is an array [20,500,10,5,100,1,50] and needs to find the number 50. The linear search algorithm checks each element in the array one by one until the target value is found or the complete array is traversed. The algorithm flowchart is as follows: The pseudo-code for linear search is as follows: Check each element: If the target value is found: Return true Return false C language implementation: #include#includeintmain(void){i

C language multithreading programming guide: Creating threads: Use the pthread_create() function to specify thread ID, properties, and thread functions. Thread synchronization: Prevent data competition through mutexes, semaphores, and conditional variables. Practical case: Use multi-threading to calculate the Fibonacci number, assign tasks to multiple threads and synchronize the results. Troubleshooting: Solve problems such as program crashes, thread stop responses, and performance bottlenecks.

In PHP, you can effectively prevent CSRF attacks by using unpredictable tokens. Specific methods include: 1. Generate and embed CSRF tokens in the form; 2. Verify the validity of the token when processing the request.
