New contact with this ape (includes PHP development environment and PHP simple algorithm questions) - the first half of 2015.07, the first half of 2015.07_PHP tutorial

New contact with this ape (includes PHP development environment and PHP simple algorithm questions) - the first half of 2015.07, the first half of 2015.07

PHP&MYSQL

Development environment preparation

SAE http://sae.sina.com.cn/

GitHub https://github.com/

Git http://git-scm.com/

Code Deployment Manual http://sae.sina.com.cn/doc/tutorial/code-deploy.html

bootstrap.css http://cdn.bootcss.com/bootstrap/3.3.4/css/bootstrap.css

Bootstrap front-end development framework http://v3.bootcss.com/

xampp https://www.apachefriends.org/zh_cn/index.html (recommended)

Development Tools

atom https://atom.io/ (myself)

sublime test3 http://www.sublimetext.com/3 (recommended)

notepad https://notepad-plus-plus.org/

phpstorm http://www.jetbrains.com/phpstorm/

Developer Community

Blog Park http://www.cnblogs.com/ (for my own use)

CSDN http://www.csdn.net/

51cto http://blog.51cto.com/

Open Source China http://www.oschina.net/

Lahuo·Entrepreneurship

Witkey-Zhubajie.com http://www.zbj.com/

36氪 http://36kr.com/

Huxiu.com http://www.huxiu.com/

PHP algorithm questions to be in-depth (code added after implementation...)

Only print 0

The specific number is determined by the input parameter n

If n=5, print 00000

php $n = $_GET['n']; for ($i=0; $i < $n; $i ) { echo"0"; } ?> //Modify n in the browser address input field: eg: //……?n=8 Print n zeros based on n value

Print a line 0101010101010101010101

The specific number is determined by the input parameter n

For example, test.php?n=3 prints 010

Achieve 1 00 111 0000 11111

　for if implementation

php for ($i = 0; $i < 10; $i ) { for ($j = 0; $j <= $i; $j ) { if ($i % 2 == 0) { echo '0'; } else { echo '1'; } } echo '
'; } ?> implementation of for&if statement

　for switch implementation

　while if implementation

While switch implementation

php $i = 0; while ($i < 10) { $j = 0; while ($j <= $i) { switch ($i % 2) { case 0: echo '0'; break; case 1; echo '1'; break; } $j ; } echo '
'; $i ; } ?> While&switch statement implementation

Be a calculator

For example, test.php?a=1&b=2&operator=jia output 3

For example, test.php?a=5&b=2&operator=jian outputs 3

For example, test.php?a=2&b=5&operator=cheng outputs 10

For example, test.php?a=6&b=3&operator=chu output 2

http://www.bkjia.com/PHPjc/1029946.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1029946.htmlTechArticleNew contact with this ape (includes PHP development environment and PHP simple algorithm questions) - first half of 2015.07, upper of 2015.07 Half-month PHPMYSQL development environment preparation SAEhttp://sae.sina.com.cn/ GitHubhttps://github...